When six scientists moved into a dome that simulated the Red Planet for a year, the challenge wasn’t the elements — but each other.
US Space Force General John Raymond says America must strengthen ties with allies because space is now a ‘contested domain’.
A new map of the Milky Way has put Earth 2,000 light years closer to the supermassive black hole at the center of our galaxy. This revised estimate is the result of over 15 years of observations by the Japanese radio astronomy project VERA.
Not thought to be volcanically active, Mars may have experienced an eruption just 53,000 years ago.
Ever since astronomers reached a consensus in the 1980s that most of the mass in the universe is invisible—that “dark matter” must glue galaxies together and gravitationally sculpt the cosmos as a...