When it comes to the question of which planet humanity could one day call home, the obvious choice might seem to be Mars. But ...

This year brought us our third-known interstellar visitor, beautiful displays of the northern lights and the opening of the ...

The upcoming year will offer a blood-red moon, spectacular meteor showers and the first glimpse of the sun’s corona since ...

The James Webb Space Telescope detected an atmosphere on a lava-covered exoplanet, evidence that small planets close to stars ...

Mars and Venus, two planets with distinctly unique characteristics, also differ significantly in their placement within the ...

Venus has been stealing the twilight show, glowing so fiercely that it can look like a misplaced aircraft or a distant beacon ...

Venus is packed with surprises and is one of the most fascinating planets in our solar system. Because of the similar size ...

Some wildfires are so intense, they create their own weather—thunderstorms driven by heat that hurtle smoke as high as 10 miles into the sky like giant chimneys. When these smoke plumes reach the thin ...

Early Earth’s atmosphere may have manufactured key sulfur molecules, giving life a head start. Credit: Shutterstock Researchers have found that early Earth’s atmosphere could naturally produce ...

The mission will be the second launch of Blue Origin's New Glenn rocket. Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick atmosphere ...

Venus, our neighbor, has long teased astronomers by being the brightest planet in our night sky. That curiosity about what hides behind its twinkle prompted NASA scientists to send the Pioneer Venus ...

Brown dwarfs: too small to be stars, too big to be planets. Only discovered in the 1990s, these in-between cosmic objects aren’t big enough to burn as hot and bright as a true star, instead usually ...