NASA’s Juno mission found Io’s biggest volcanic eruption ever. The explosion was stronger than all Earth’s power plants ...

"This is the most powerful volcanic event ever recorded on the most volcanic world in our solar system — so that's really saying something." ...

NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer planets of our solar system.

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

The U.S. Senate confirmed billionaire investor Scott Bessent on Monday to serve as President Donald Trump's treasury ...

The seven planets will not be perfectly aligned, but will appear in an arc across the sky due to their orbital plane in the Solar System.

Venus, Mars, Jupiter & Saturn, already visible to the naked eye, will be joined by Mercury, Neptune & Uranus in a rare ...

This January and February, a rare planetary alignment featuring Venus, Mars, Jupiter, Saturn, Uranus, and Neptune will be visible, with Mercury joinin ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already ...

Voyager 1 flew past Jupiter in 1979 and Saturn in 1980, eschewing Uranus and Neptune because scientists wanted to fly past ...

The Galileo probe expanded on our knowledge of Jupiter's moon, Io, showing us just how hot and hellish the Jovian satellite could be.

Have you read on social media about the “once in 396 billion years” planetary alignment happening on Jan. 25? Guess what? Social media is not reliable. Here’s what’s really going on — and why you ...