The levels of a heavy form of hydrogen in 3I/ATLAS are 30 to 40 times higher than in Earth's oceans, suggesting the comet has ...

The Solar System is a weird place filled with incredible physics and geological oddities that often break down in human terms ...

Meet Stevenson 218, the largest known star in the universe. This red supergiant is so massive it could engulf our entire ...

Earlier estimates of its age were around 7 billion years, but a new study suggests it’s much older.

Greek mythology has given a name to a great many objects in our solar system. But perhaps one of the least well understood ...

The Hubble Space Telescope celebrates 36 years of incredible discoveries, stunning imagery, and a lasting impact on astronomy.

JAXA samples reveal that asteroid Ryugu has a complete set of nucleobases, the building blocks of DNA.

Scientists have captured the most complete, high-resolution map of the cold gas at the center of the Milky Way, which contains the raw material from which stars and planets are made. Information from ...

The Gaia telescope spotted more than 6,000 sunlike stars, all of which appear to have migrated from the galaxy's center more ...

The much-anticipated sci-fi film Project Hail Mary is out in theaters today. In it, light-eating alien microbes sap the sun’s ...

Analysis reveals what appears to be a channel of hot, low-density plasma stretching out from our solar system toward distant ...

Project Hail Mary reminds us how important our world is – and how vital science is to our continued existence on it.