Scientists have discovered seven more "dark comets," and analysis of this haul suggests that the puzzling planetoids are divided into two distinct families, further deepening the mystery of why these ...

"The amounts of each depend on where and when the comet was formed and evolved," said Lisse. That's because these ingredients sublimate, or boil off, into outer space at different temperatures. "A ...

What, exactly, is the interstellar object called 3I/ATLAS hurtling towards Earth that has scientists sweating and scrambling ...

We like to think of ourselves as a species that understands a lot about the Universe. Sure, we're far from knowing everything there is to know, but our current level of knowledge is enough to make us ...

The exploration of planets is exciting and all, but true discoveries and some of the answers to the fundamental questions that have plagued our species for centuries will most likely come from us ...

The rocky bodies, which look like asteroids but act like comets, could comprise up to 60% of near-Earth objects. Share on Facebook (opens in a new window) Share on X (opens in a new window) Share on ...

In a pair of papers published in 2018 and 2021 in the Journal of Geophysical Research: Planets, planetary scientist Steve ...

Travel the universe from your seat with our picks from the annual ZWO Astronomy Photographer of the Year competition.

These celestial objects are known as "dark comets," which are astronomical objects that look like asteroids but strangely move through space like a comet. These odd objects were first discovered less ...