The planet should not have survived the star's red giant phase—which sees a star balloon to more than 100 times its original ...

What happens at the end of our world? Scientists have found an Earth-like planet orbiting a star 4,000 light years away from the solar system that may reveal our planet’s ultimate fate. The rocky ...

Every time I see the moon in the sky, it makes me happy. The big picture of the moon’s origin is fairly well established.

About 1800 light years away, a planet the size of Neptune is orbiting perilously close to its baleful, bloated red star — and it could be carrying some clues about Earth’s eventual fate. The planet — ...

A bewildering number of factors and variables led up to the planet we occupy today, where life finds a way to survive and even thrive in the most marginal conditions. The sun is the catalyst for it ...

At the ripe age of five, it is clear that the United States Space Force, while dominated by old thinking, still doesn’t know what it wants to be when it grows up, and is split among multiple different ...

In the quiet layers of rock, footprints, bones, and leaves tell a story of worlds lost, and of our own uncertain future. Every year, National Fossil Day invites us to pause and think about the ...