Theo Nicitopoulos, Author at Astronomy.com

Scientists view Ganymede’s aurorae dancing during eclipse

Map of Io's hot spots

Science, Solar System

First-of-its-kind map of Io’s volcanoes hints at subsurface magma ocean

Curation teams process the sample return capsule from NASA’s OSIRIS-REx mission in a cleanroom in 2023. Credit: NASA.

Science, Solar System

Asteroid Bennu sample shows more signs of a watery past

Curation teams process the sample return capsule from NASA’s OSIRIS-REx mission in a cleanroom in 2023. Credit: NASA.

Exotic Objects, Science

NASA’s asteroid Bennu samples have rocks unlike any meteorite ever found

An artist's conception of a centaur, a half-asteroid, half-comet rock.

Exotic Objects, Science

The oddities known as Centaurs may sprout their tails after jumping to new orbits

Researchers race to find Earth’s oldest craters

Aurorae throughout solar system

Science, Solar System

Aurorae throughout our solar system and beyond

Science, Solar System

Rising star in astronomy: Alexander James

Rising star in astronomy: Howard Chen

Exoplanets, Stars

White dwarfs polluted with rocky debris shed light on exoplanets

Robotic Spaceflight, Solar System

Asteroid Ryugu is made of rubble from the outer solar system

The dusty days of summer on Mars