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An external pallet packed with old nickel-hydrogen batteries is pictured shortly after mission controllers in Houston commanded the Canadarm2 robotic arm to release it into space.

Human Spaceflight, Space Exploration

A metal chunk that burst through a Florida home came from the ISS

Jupiter's moon Io

Jupiter’s moon Io has likely been active for our solar system’s entire history

2024 Solar Eclipse, Science

While millions watched the eclipse, these Purdue University scientists listened

Scientists could one day find traces of life on Enceladus, an ocean-covered moon orbiting Saturn. Credit: NASA/JPL-Caltech, CC BY-SA

Alien Life, Robotic Spaceflight, Space Exploration

The search is on for extraterrestrial life on worlds like Enceladus

A modern-day photo of Ulugh Beg's partially rebuilt observatory. Credit: Wikimedia Commons

Science, Space Exploration

The clever prince Ulugh Beg built — and used — an ingenious observatory in the 15th century

Orion's "selfie" of itself and the Moon. Orion will carry astronauts on several space missions.

Human Spaceflight, Robotic Spaceflight, Space Exploration

An updated list of space missions: Current and upcoming voyages

Cosmology, Exotic Objects, Galaxies, Milky Way, Solar System, Space Exploration, Stars

The largest digital camera ever made for astronomy is done

Valles Marineris, the grand canyon of Mars, slices its way across this view of the Red Planet made with the Viking Orbiter 1. Credit: NASA

Robotic Spaceflight, Solar System, Space Exploration

NASA seeks faster, cheaper options to return Mars samples to Earth

The Sun rises slowly spreading a golden glow over Earth in this image taken from the International Space Station. Credit: NASA.

Why good science is needed more than ever, and so is good faith

NASA's Ingenuity helicopter unlocked its rotor blades, allowing them to spin freely, on April 7, 2021. Credit: NASA.

Human Spaceflight, Robotic Spaceflight, Space Exploration

NASA bids farewell to the Ingenuity Mars Helicopter with new photos

Doomed neutron stars whirl toward their demise in this animation. Credit: NASA.

Exotic Objects, Science

How to help astronomers study gamma-ray bursts

Europa was captured by JunoCam, during the mission's close flyby on Sept. 29, 2022. The circular dark feature at the lower right is Callanish Crater.

Alien Life, Science, Solar System

Circular patterns on Europa suggest how deep a lively ocean may be