Wednesday, August 23, 2023

Russia’s first lunar mission in decades crashes into the moon

 Russia’s first lunar mission in decades has ended in failure with its Luna 25 spacecraft crashing into the moon’s surface.

The incident, a blow to Russia’s space ambitions, happened after communication with the robotic spacecraft was interrupted.


Russia’s space agency, Roscosmos, said it lost touch with Luna 25 on Saturday around 2:57 p.m. Moscow time.

“The measures taken on August 19 and 20 to search for the device and get into contact with it did not yield any results,” the space agency reported.

According to a “preliminary analysis,” Luna-25 “switched to an off-design orbit” before the collision, Roscosmos said.

It was not immediately clear what caused the crash.





A specially formed commission will investigate the reasons for the loss of Luna 25, the agency added.

The news comes a day after the spacecraft reported an “emergency situation” as it was trying to enter a pre-landing orbit, according to Roscosmos.

“During the operation, an emergency situation occurred on board the automatic station, which did not allow the maneuver to be performed with the specified parameters,” Roscosmos shared in a Telegram post on Saturday.

The spacecraft was meant to complete Russia’s first lunar landing mission in 47 years. The country’s last lunar lander, Luna 24, landed on the surface of the moon on August 18, 1976.

The Luna 25 probe launched from the Vostochny Cosmodrome in Russia’s Amur Oblast on August 10, setting the vehicle on a swift trip to the moon.

Luna 25’s trajectory allowed it to surpass India’s Chandrayaan-3 lunar lander, which launched in mid-July, on the way to the lunar surface.


Also called the Luna-Glob-Lander, Luna 25 was on a journey to study the composition of the moon’s soil and the very thin lunar exosphere, or the moon’s scant atmosphere, for one year.

The mission’s trajectory allowed it to surpass India’s Chandrayaan-3 lunar lander, which launched in mid-July.

Both spacecraft were headed for the moon’s south pole region.

Much of the interest in the area comes down to the fact that it remains one of the least explored regions of the moon. The geographical area is also where scientists believe water is stored on the lunar surface in the form of ice, frozen solid in shadowy craters shielded from the sun.

Characterizations that India and Russia were racing for the lunar south pole, however, weren’t entirely accurate, according to astrophysicist Jonathan McDowell, a researcher at the Center for Astrophysics, Harvard & Smithsonian. He pointed out that both projects have been in the works for more than a decade.

Initially, Roscosmos and the European Space Agency planned to partner on Luna 25, as well as Luna 26, Luna 27 and the ExoMars rover.

But that partnership ceased in April 2022 after Russia’s invasion of Ukraine, and the ESA Council moved to “discontinue cooperative activities with Russia.”

Luna 25 had eight scientific instruments, including specialized devices called spectrometers. One was intended to study the lunar soil, and another to detect surface water, according to NASA.

India’s Chandrayaan-3, meanwhile, has a lander, propulsion module and rover — an exploratory capability Russia did not have. The small, robotic vehicle can traverse the lunar terrain.

Chandrayaan-3’s landing could mark the first successful lunar touchdown for the country. India’s most recent attempt ended in failure when Chandrayaan-2 crash-landed in September 2019.

Chandrayaan-3 is slated to attempt its landing as soon as Wednesday, August 23.

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Friday, August 18, 2023

Hubble Peers at Mysterious Cosmic ‘Keyhole’

 This peculiar portrait from the NASA/ESA Hubble Space Telescope showcases NGC 1999, a reflection nebula in the constellation Orion. NGC 1999 is around 1,350 light-years from Earth and lies near the Orion Nebula, the closest region of massive star formation to Earth. NGC 1999 itself is a relic of recent star formation – it is composed of debris left over from the formation of a newborn star.


Just like fog curling around a streetlamp, reflection nebulae like NGC 1999 shine by the light from an embedded source. In the case of NGC 1999, this source is the aforementioned newborn star V380 Orionis, which is visible at the center of this image. The most notable aspect of NGC 1999’s appearance, however, is the conspicuous hole in its center, which resembles an inky black keyhole of cosmic proportions.

This image was created from archival Wide Field Planetary Camera 2 observations that date from shortly after Servicing Mission 3A in 1999. At the time, astronomers believed that the dark patch in NGC 1999 was something called a Bok globule – a dense, cold cloud of gas, molecules, and cosmic dust that blots out background light. However, follow-up observations using a collection of telescopes, including ESA’s Herschel Space Observatory, revealed that the dark patch is actually an empty region of space. The origin of this unexplained rift in the heart of NGC 1999 remains unknown.

The star of this interesting image taken by the Hubble Space Telescope is NGC 1999, a reflection nebula around 1,350 light-years away in the constellation Orion. The reflection nebula is the closest region of massive star formation to Earth, according to the European Space Agency (ESA). The image was created using archival observations from 1999.

Reflection nebulae are clouds of interstellar dust and gas that can reflect the light of nearby stars. The image of NGC 1999 looks just like fog curling around a streetlight, and just like the fog, the nebula gets shines because of light from a separate source. This source is the newborn star V380 Orionis, which is the bright spot of light visible at the centre of the image.

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Night sky, August 2023: What you can see tonight [maps]

 The night sky tonight and on any clear night offers an ever-changing display of fascinating objects you can see, from stars and constellations to bright planets, the moon, and sometimes special events like meteor showers.




Observing the night sky can be done with no special equipment, although a sky map can be very useful, and a good telescope or binoculars will enhance some experiences and bring some otherwise invisible objects into view. You can also use astronomy accessories to make your observing easier, and use our Satellite Tracker page powered by N2YO.comto find out when and how to see the International Space Station and other satellites. We also have a helpful guide on how you can see and track a Starlink satellite train. 

You can also capture the night sky by using any of the best cameras for astrophotography, along with a selection of the best lenses for astrophotography. 

Read on to find out what's up in the night sky tonight (planets visible now, moon phases, observing highlights this month) plus other resources (skywatching terms, night sky observing tips and further reading)

Monthly skywatching information is provided to Space.com by Chris Vaughan of Starry Night Education, the leader in space science curriculum solutions. Follow Starry Night on Twitter @StarryNightEdu and Chris at @Astrogeoguy

Editor's note: If you have an amazing skywatching photo and would like to share them with Space.com’s readers, send your photo(s), comments, and your name and location to 



The first of two full moons in August will occur on Tuesday, Aug. 1 at 2:32 p.m. EDT, 11:32 a.m. PDT, or 18:32 GMT. This full moon, colloquially called the "Sturgeon Moon", "Red Moon", "Green Corn Moon", and "Grain Moon", always shines among or near the stars of Aquarius or Capricornus. 

The indigenous Anishinaabe people of the Great Lakes region call this moon Manoominike-giizis, the Wild Rice Moon, or Miine Giizis, the Blueberry Moon. The Cree Nation of central USA and Canada calls the August full moon Ohpahowipîsim, the Flying Up Moon. The Haudenosaunee (Iroquois) of Eastern North America call it Seskéha, the Freshness Moon. 

The moon becomes fully illuminated when it is opposite the sun in the sky, causing full moons to rise at sunset and set at sunrise. Since this full moon will occur only 9.5 hours before perigee, it will qualify as a supermoon, appearing about 7% larger and shining a bit brighter than average. The world will experience higher perigean tides due to this full moon's proximity to Earth.


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Wednesday, August 16, 2023

A ‘Cannibal’ solar explosion might hit Earth today, cutting off radio, power and satellites

 The National Oceanic Atmospheric Administration (NOAA) has warned about a cannibal, coronal mass ejection that is heading towards the Earth and can cause a strong solar storm today.

  • According to a report on the SpaceWeather website, “A new NOAA model shows the two CMEs leaving the sun on August 5, then merging to form a single cannibal CME that delivers a glancing blow to earth on August 8. These cannibal CMEs are famous for causing strong geomagnetic storm, and even a glancing blow can be effective.”


NASA’s Solar and Heliospheric Observatory (SOHO) is a space satellite that was launched on December 2, 1995, to observe the Sun. It is a joint project between NASA and European Space Agency (ESA) to study the Sun, its atmosphere and its effect on the solar system.

It is equipped with 12 scientific instruments, such as Extreme Ultraviolet Imaging Telescope (EIT) Michelson Doppler Imager (MDI) LASCO (Large Angle and Spectometric Coronagraph), and others.

  • When a CME hits the earth, it has the potential to cause a geomagnetic storm which can disrupt the planet's magnetosphere, our radio transmissions and electrical power lines.
  • They can also damage the artificial satellites and cause long-lasting power outages. 

At the moment, it is not confirmed whether the hit will be a head-on collision or a glancing blow. Researchers are keeping a close eye on the clouds to understand the situation.

Cannibal coronal mass ejections (CME) take place when speeding solar eruptions overtake earlier eruptions in the same region of space, combining with the charged particles to form a giant, combined wavefront that triggers a powerful geomagnetic storm.

  • This always has a higher electromagnetic output and can cause damage to satellites and communications systems. 
  • According to the NOAA, an X1.6 solar flare released two powerful coronal mass ejections on August 5 and now they have become more “terrifying”.
  • This CME has been said to be “cannibalistic” in nature, which is an event rarer than a regular CME as it occurs when a fast coronal mass ejection consumes a smaller one on its way to Earth, forming a large wave of plasma.
  • Cannibal CMEs are increasing as the Sun’s 11-year-old cycle peaks ahead of the next one, which will begin in 2025.

Sunday, August 6, 2023

China's mysterious space plane returns to Earth after 9-month orbital mission

The robotic vehicle stayed aloft for 276 days on its second orbital flight.

The second orbital mission of China's robotic space plane has come to a close.

The mysterious reusable vehicle touched down Monday (May 8) at the Jiuquan Satellite Launch Center in northwest China, wrapping up a 276-day mission to Earth orbit, according to China's state-run Xinhua news agency.

Thursday, July 27, 2023

NASA's ComPair gamma-ray hunting mission prepares for balloon flight

 Engineers and scientists have shipped NASA's ComPair instrument to Fort Sumner, New Mexico, ahead of its scheduled August flight early in NASA's 2023 fall balloon campaign.



ComPair's goal is to test new technologies for studying gamma rays, the highest-energy form of light. It was assembled and tested at NASA's Goddard Space Flight Center in Greenbelt, Maryland.

"The gamma-ray energy range we're targeting with ComPair isn't well covered by current observatories," said Carolyn Kierans, the instrument's principal investigator at Goddard. "We hope that after a successful balloon test flight, future versions of the technologies will be used in space-based missions."

ComPair is designed to detect gamma rays with energies between 200,000 and 20 million electron volts. (For comparison, the energy of visible light is 2 to 3 electron volts.) Supernovae and , the most powerful explosions in the cosmos, glow brightest in this range, as do the most massive and distant active galaxies, which are powered by supermassive black holes. Scientists know this because they see a fraction of the light emitted by these galaxies with NASA's Fermi Gamma-ray Space Telescope, which observes higher-energy gamma rays.




ComPair gets its name from the two ways it detects and measures gamma rays: Compton scattering and pair production. Compton scattering occurs when light hits a particle, such as an electron, and transfers some energy to it. Pair production happens when a gamma ray grazes the nucleus of an atom. The interaction converts the gamma ray into a pair of particles—an electron and its antimatter counterpart, a positron.

The ComPair instrument has four major components:

  • A tracker containing 10 layers of silicon detectors that determines the positions of incoming gamma rays
  • A high-resolution calorimeter that precisely measures lower-energy Compton-scattered 
  • Another calorimeter that measures the higher-energies of electron-positron pairs
  • An anticoincidence detector that notes the entry of high-energy charged particles called , allowing ComPair's other instruments to ignore them
  • The mission team assembled all the components and tested them in a large thermal vacuum chamber at Goddard to assess how they'll function at balloon altitudes. The next step is to fly the instrument. The flight will carry ComPair to a height of about 133,000 feet (40,000 meters), or nearly four times the cruising altitude of a commercial airliner.

    ComPair will piggyback with one of the primary balloon payloads that will fly during NASA's annual Fort Sumner balloon campaign. NASA's scientific balloons offer frequent, low-cost access to near-space to conduct scientific investigations and technology maturation in fields such as astrophysics, heliophysics, and atmospheric research, as well as training for the next generation of leaders in engineering and science.

    ComPair is a collaboration among Goddard, the Naval Research Laboratory in Washington, Brookhaven National Laboratory in Upton, New York, and Los Alamos National Laboratory in New Mexico.

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Tuesday, July 25, 2023

World's largest hydro-solar power plant is now fully operational in China

 Editor's note: Kela, a mega hydro-photovoltaic (PV) complementary power station constructed by China, will undoubtedly be inked in history for its unprecedented installed capacity scale of 1 million kilowatts. CGTN takes notes on its grand commencement of initial operation on June 25, 2023.



The world's largest and highest-altitude hydro-solar power plant, which generates power through a water-light complementary manner, entered full operation in China on Sunday.

For the first time, the Kela photovoltaic power station boasts of an installed capacity scale of 1 million kilowatts for a hydro-solar power grid. It can fully charge 15,000 electric vehicles with a range of 550 kilometers in just one hour. 

The plant, situated in the Yalong River Basin of the Tibetan Autonomous Prefecture of Garze in southwest China's Sichuan Province's Yajiang County, will cover the needs of 700,000 households for a whole year with its annual generating capacity of 2 billion kilowatt-hours (kWh). 

"This is equivalent to 600,000 tonnes of standard coal and will reduce carbon dioxide emissions by more than 1.6 million tonnes," Yang Zhiwei, the construction project manager, PowerChina Chengdu Engineering Co., (PowerChina Chengdu), told China Media Group (CMG).

With a reliance on sunlight to generate electricity, the power generation of PV stations fluctuates between day and night amid weather events. The hydropower component can help to regulate all instability in such supply manner, therefore, providing stable and high-quality clean energy.


The Kela PV power plant is next to National Highway 318, a key transport route linking Sichuan and the neighboring Xizang Autonomous Region. 

With an area exceeding 16 million square meters, it is bigger than 2,000 standard football fields.

The plant is built at an altitude of around 4,600 meters, which is equal to the altitude of the Ali region in Xizang, the Third Pole in the world, and 1,000 meters above the altitude of the city of Lhasa. 

A total of 527,000 photovoltaic foundation piles are installed in the power station, which has the same weight as 222 C919 aircraft, China's first domestically constructed large passenger plane that just completed its initial commercial flight.

If these photovoltaic piles were connected, the total length would exceed 1,400 kilometers, which is 11 times the total length of the Beijing-Tianjin Railway.

Nearly 50,000 tonnes of steel were used for the PV powerhouse, enough to build another grand venue of the National Stadium (Bird's Nest) which held the 2022 Beijing Winter Olympics opening ceremony


More than 2 million photovoltaic modules were assembled, and the components can cover the area of three Beijing Daxing International Airports, with a transportation distance of 2,400 kilometers, spanning half of China.

Construction of this grand power station has been quick and efficient. Despite encountering extreme cold weather, the project team undertook and fulfilled the tough task in just six months. 

To the highest efficiency, a total of 7,000 PV bracket foundations were installed within 24 hours, together with 1,200 sets of PV brackets, 33,000 pieces of PV modules and 30 box transformers.

As China strives to ensure energy security and achieve its dual carbon goals, Kela is the first hydropower station built during the 14th Five-Year Plan period (2021-2025) on the Yalong River Clean Energy Base.

The Design and Research Institute of the PowerChina Chengdu began project planning for Kela in 2016, with construction starting in July 2022.

Being the first phase project of the Yalong River's Lianghekou Hydropower Station, which was put into operation in March with a total installed capacity of three million kilowatts, electricity generated by Kela will be connected to the Lianghekou and then integrated into the power grid.

The two will help to shape a grand renewable energy base.Upon completion, the Yalong River Clean Energy Base, with an installed capacity exceeding 100 million kilowatts and annual power generation of around 300 billion kWh, will be sufficient to serve 100 million households for a year. 

In addition, the project will ultimately emerge into one of the world's largest green, clean, and renewable energy bases, leading to achieve the goals of peak carbon emissions and carbon neutrality, optimizing national energy structure, and boosting industries including agriculture, tourism, and transportation.

#ChinaHydroSolarPowerPlant
#WorldsLargestHydroSolarPlant
#RenewableEnergyChina
#HydroSolarProject
#CleanEnergyChina

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A solar eclipse occurs when the Moon passes between Earth and the Sun

  A   solar eclipse   occurs when the   Moon   passes between   Earth   and the   Sun , thereby obscuring the view of the Sun from a small p...