The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are ...

On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by the vote of the International Astronomical Union, which declared that Pluto, considered the ...

Asteroid ‘Families’ Reveal Hidden Histories and Impact Risks across the Solar System ...

The rate of finding these distant worlds has recently increased, with astronomers scrambling to accommodate the data ...

The spacecraft will map the boundaries of the heliosphere, study how Earth’s outer atmosphere reacts to solar activity and ...

Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

Gleise 710, an orange dwarf star about 63 light years away, is on course to pass through the outer reaches of our solar system in about 1.2 million years, disturbing the distant Oort Cloud of icy ...

Why do all planets in our solar system orbit the Sun the same way? This documentary unravels the cosmic forces, from the solar system’s violent birth to the hidden laws of physics, that keep the ...

On Episode 176 of This Week In Space, Rod Pyle and and Tariq Malik are joined by Alan Stern to talk about what's next in deep ...

Dr Ryan MacDonald, lecturer in extrasolar planets in the School of Physics and Astronomy at the University of St Andrews, ...

This week's letters include a call to action from Beaches Go Green 2.0; opposition to proposed surf park; questions on U.S.