University of Arizona astrophysicist Erika Hamden takes readers on a romp through a "Weird Universe" in her debut popular ...

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

The Expanse won praise for its amazing stories and complex characters, but the sci-fi series also nailed scientific and ...

The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If you include the ...

A unique gas giant has been confirmed through global teamwork, offering insights into planetary formation and future ...

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

This discovery marks the first known case of a compact planetary system with such a noticeable tilt between close planet ...

A new investigation into old Kepler data has revealed that a planetary system once thought to house zero planets actually has ...

NASA telescopes in Chile have discovered a comet from interstellar space, making its closest approach in October.

The object gained an official name, C/2025 N1 or 3I/ATLAS, on Wednesday. Moving at a record-setting speed for an interstellar ...

The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.