Why is Pluto no longer a planet? Discover the real reason behind Pluto’s reclassification as a dwarf planet and the science that led to this change.

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

Mercury would be the gossip, Venus the social butterfly, and Earth the over-eager colleague. Mars would be excessively compe ...

Scientists at NASA for the first time have been able to observe the make up of Pluto and other small and icy celestial bodies ...

These popular astronomy questions, answered by Astronomy magazine, will help you better understand our universe - and share ...

Explore Ceres, the largest asteroid in our solar system, and discover its remarkable ancient ocean and ice-rich crust.

Last fall, the scientific community went into a minor frenzy. A hunk of interstellar material had been sucked into the ...

To get somewhere in outer space, you can’t exactly drive in a straight line. Orbits are tricky things, and sending a probe to ...

NASA and European scientists explain how they calculate the probability of the space rock 2024 YR4 impacting our planet, and why it’s not yet time to worry.

Astrology has a delightful lens through which we can consider why some signs play romantic matches of perfection.