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NASA spacecraft takes milestone 100,000th image of Mars (photo)
NASA's Mars Reconnaissance Orbiter spacecraft has just taken its milestone 100,000th photo of the Red Planet using its high-definition camera. It reveals a dark region of moving sand dunes.
Why is Venus so bright?
The "morning star" is bright because of several factors, including having an atmosphere filled with sulfuric acid.
'Unprecedented' protoplanet collision spotted in 'Eye of Sauron' star system just 25 light-years from Earth
Scientists watching the nearby Fomalhaut star system have directly seen two protoplanets smash together for the first time. Then, they saw it happen again.
Interstellar comet 3I/ATLAS makes closest pass of Earth. Where's it heading next?
Everyone's favorite interstellar comet, 3I/ATLAS, flew past Earth overnight, coming within about 168 million miles (270 million kilometers) of our planet.
Comet 3I/ATLAS reaches its closest point to Earth tonight: How to see it
Comet 3I/ATLAS, the third interstellar object ever detected, reached its closest point to Earth overnight from Thursday to Friday (Dec. 18 to 19), and it remains in a good viewing position tonight. Here's how to see it.
Ursid meteor shower 2025: When and where to see 'shooting stars' on the longest night of the year
Here's how to see the Ursid meteor shower, which peaks in dark skies close to a new moon this year.
NASA eyes 3I/ATLAS with alien-hunting Clipper spacecraft in new image
NASA's alien-hunting Europa Clipper spacecraft took seven hours of ultraviolet observations of interstellar comet 3I/ATLAS while both objects zoom toward Jupiter.
NASA's Parker Solar Probe mapped an unseen part of the sun at its most active moment
Data from NASA's Parker Solar Probe has enabled astronomers to map the unssen surface of the sun's atmosphere for the first time.
Mysterious, irradiated 'scar' in our galaxy may finally have an explanation
Astronomers traced a mysterious 'scar' of ionized gas around the solar system to two stars that had a close flyby with our sun millions of years ago.
Spiders on Jupiter? Scientists uncover secret origins of arachnid-like 'demon' lurking on gas giant's moon.
A new study reveals the likely origin of a mysterious spider-like pattern first spotted on Jupiter's moon Europa in 1998. The finding could have implications for a NASA spacecraft en route to the frozen world.
