In September, NASA announced the discovery of a possible sign of life, known as a potential biosignature, on Mars. The Perseverance rover, which has been exploring a dried-up lakebed for years, found ...

Jan. 2 (UPI) --Travel restrictions for 20 more nations and locales took effect on Thursday in accordance with President Donald Trump's Dec. 16 order expanding travel restrictions to 39 nations.

Add Yahoo as a preferred source to see more of our stories on Google. Another 20 nations and entities are restricted from travel to the United States, raising the total number of nations banned to 39 ...

They’ve got their 3Is on the prize. The highly anticipated data 3I/ATLAS’ Earth tour last month is in. A targeted scan of 3I/ATLAS for signs of radio transmitting tech has come up empty — but Harvard ...