Mars has northern and southern hemispheres like Earth, but their defining characteristics are markedly different, a ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

The ESA Solar Orbiter has provided a stunning new look at the Sun by combining 25 high-resolution images. This mosaic offers a detailed view of the solar surface, including sunspots and granules, ...

The article highlights the key differences between seas and oceans, including their geographical locations, depths, volumes, ...

A newly compiled dataset of nearly one billion images of auroras is helping researchers categorize—and perhaps ultimately ...

The larger moons of Pluto and Earth likely formed through a collisional process with Charon and our moon, respectively, ...

An asteroid the size of a ... miles of Earth and having a diameter of at least 460 feet across. "A PHA is one that has an orbit intersecting the Earth's orbit around the sun by less than 0.05 ...

In 1831, a massive volcanic eruption cooled the Earth’s atmosphere by 1 degree Celsius and even caused the Sun to appear in ...

Meeting of the American Astronomical Society, two teams of astronomers—centered at Penn State and MIT—independently announced new discoveries about an extreme form of planetary destruction: apparently ...

Twinkle Twinkle Little Star is probably the first scientific fact babies hear in the English-speaking world. It's easily ...

The Red Planet reaches its best position all year this week on January 15. Here’s how and when to get out and see it.

The Hubble Space Telescope, for comparison, has a 6.5-foot (2 m ... including a super-sensitive coronagraph that can detect ...