Emission spectra for the model KELT-20 b atmosphere for the 5 different OH abundance scenarios, each in LTE and Non-LTE. — astro-ph.EP The TIRAMISU code, a new program for computing
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Rocks in the Bright Angel Formation. NASA’s Mars Perseverance rover acquired this image using its Right Mastcam-Z camera. Mastcam-Z is a pair of cameras located high on the rover’s mast.
Sometimes an unusual celestial sight will take place at a rather ungodly hour. As a budding young amateur astronomer living in the Bronx, I remember the bemused look on my
PARIS — Arianespace is weighing options to increase the launch rate of the Ariane 6 rocket beyond 10 per year if government and commercial demand supports it. Speaking with reporters
WASHINGTON — Sierra Space and NASA have sharply revised a contract to use the company’s Dream Chaser vehicle to deliver cargo to the International Space Station as the company pivots
The time is ripe to end the “Wolf Amendment,” a congressional bar inhibiting civil collaboration between the United States and China in space. The impetus for the law was noble
This illustration shows a star surrounded by a protoplanetary disk. A new study uses data from NASA’s Spitzer Space Telescope and four ground-based telescopes to determine the distance from a
Astronomers and students working together through a unique educational initiative have obtained a striking new image of the growing tail of interstellar Comet 3I/ATLAS. The observations reveal a prominent tail
Observing and doing astrophotography with a telescope, is an acquired skill that undoubtedly rewards the amateur astronomer, but not everyone has the time, patience or long spells of clear skies
NASA on Tuesday said it was on track to send astronauts to orbit the moon in early 2026, as the United States races China to return to the lunar surface.
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