All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Venus, Mars, Jupiter, Saturn, Uranus, and Neptune will align in a straight line in the sky. While most of these planets will ...

Because the period of an object does not depend on its mass, comets’ orbital periods remain unchanged due to mass loss.

On the evening of February 28, stargazers will witness a rare celestial event: an alignment of seven planets visible ...

The new Trump administration could upend NASA's priorities, reshaping the Artemis moon program, climate science funding and ...

The asteroid is estimated to be between 656 and 1,443 feet across, and will pass at 16 times the distance to the moon.

From its formative role in the solar system to its effect on Earth’s technology, studying heliophysics is essential for ...

In a remarkable event captured on home security footage, a meteorite crashed onto the driveway of a Canadian couple's home, ...

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

The six planets will be visible in the days immediately leading up to Jan. 21, and for about four weeks afterward. Mars, ...

Genesis data is now producing high impact science in cosmochemistry, solar physics, coronal mass ejections, and space ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.