View larger. | Theia and Earth collided about 4.5 billion years ago, as depicted in this artist’s concept. The moon then formed out of the chaos. Image via Max Planck
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China’s Shijian spacecraft separate after pioneering geosynchronous orbit refueling tests
HELSINKI — China’s experimental Shijian-21 and Shijian-25 satellites have separated in geosynchronous orbit after being docked for months conducting apparent low-profile on-orbit refueling tests. Shijian-21 and Shijian-25 performed rendezvous and
Genome Sequence And Methylome Of The Extremely Halophilic Bacterium Salinibacter Ruber Strain M31T Isolated From A Crystallizer Pond In Mallorca, Spain
Maximum likelihood phylogenetic trees of the S. ruber M31T-predicted proteins with an archaeal evolutionary history potentially acquired by horizontal gene transfer: (A) sodium-dependent transporter (XGX02982.1); (B) MFS transporter (XGX01653.1); and
Is this the cheapest Black Friday telescope deal we've seen? Yes! Best budget telescope now $182 in time for Christmas!
Celestron are one of the biggest names when it comes to telescopes, and now with this great offer from Amazon this Black Friday weekend, you can save $78 on one
Spectrophotometric Evidence For A Metal-bearing, Carbonaceous, and Pristine Interstellar Comet 3I/ATLAS
3I spectrum (dots) and the reflectance spectra of three CR and one R chondrite discussed in the text. — astro-ph.EP 3I/ATLAS is only the second confirmed cometary object known to
Resolving The Flat-spectrum Conundrum: Clumpy Aerosol Distributions In Sub-Neptune Atmospheres
Schematic cartoon showing the difference between the patchy and clumpy formalisms, with a zoom in to the transmission geometry (where the star is to the left, and the observer to
JWST COMPASS: Insights into the Systematic Noise Properties of NIRSpec/G395H From a Uniform Reanalysis of Seven Transmission Spectra
Composite spectra for the five super-Earths (top) and two sub-Neptunes (bottom). The dashed line represents the best-fit flat line model including an offset between NRS1 and NRS2, and the χ
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https://earthsky.org/upl/2024/01/ezgif.com-gif-to-webm-converter.webm NASA’s OSIRIS-APEX spacecraft captured this view of Earth as it soared some 2,100 miles (3,400 kilometers) above our planet’s surface on September 23, 2025. For comparison, satellites in low
BREMEN, Germany — NASA has selected Northrop Grumman to provide cargo delivery services to the International Space Station once a spacecraft designed to deorbit the station is installed. NASA issued
BREMEN, Germany — The European Space Agency and its supporters will find out in the next two days how successful they have been in convincing European governments to significantly increase
Senior officials and ministers are convening in Bremen, Germany, for the European Space Agency’s Ministerial Council on November 26 and 27. This crucial meeting will focus on establishing the agency’s
In the documentary, a significant weight is placed on testimonies from individuals who once occupied high positions within government programs related to unidentified aerial phenomena (UAP). These individuals include former
Scientists working with the James Webb Space Telescope discovered three unusual astronomical objects in early 2025, which may be examples of dark stars. The concept of dark stars has existed
A team of astronomers from the International Center for Radio Astronomy Research (ICRAR) has released new data from an extensive galaxy evolution survey that found a galaxy’s “neighborhood” plays a
WASHINGTON — The U.S. Space Force has begun awarding prototype contracts for space-based interceptors, an early step in the Pentagon’s push to field its planned Golden Dome missile defense architecture.
In the early 1930s, Swiss astronomer Fritz Zwicky observed galaxies in space moving faster than their mass should allow, prompting him to infer the presence of some invisible scaffolding—dark matter—holding
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