NASA's SpaceX Crew-2 astronauts on the International Space Station relocated the Crew Dragon spacecraft Endeavour ahead of Boeing's Starliner spacecraft arrival next weekend.

The U.S. Air Force Research Laboratory's mission to study Earth's Van Allen radiation belts ended on May 31, after exceeding its original planned lifetime of one year in orbit.

The first all-civilian orbital flight crew, Inspiration4, flew in zero gravity for the first time this weekend as part of preparations to launch in September.

A stunning new image from the South African MeerKAT telescope captures powerful radio emissions woven through space.

A SpaceX tracking camera captured amazing views of it's Falcon 9 rocket landing back on Earth after it launched 88 small satellites into polar orbit, as part of its Transporter-2 rideshare mission.

NASA is still investigating the computer glitch that has left the Hubble Space Telescope offline after an unsuccessful attempt to turn on its backup computer for the first time in space.

Lockheed Martin has been awarded a $4.9 billion contract to build a triad of missile-warning satellites for the U.S. Space Force.

A pair of gas-giant exoplanets was found orbiting a distant sun-like star, thanks to the help of citizen scientists around the world.

The official start of summer kicks off in the Northern Hemisphere today (June 20) to make Father's Day the longest day of the year.

If you missed the total lunar eclipse on Wednesday (May 26), you'll have to wait nearly a year for the next one.

NASA shared a fun new learning guide for students to build their own lunar eclipse model ahead of this week's "Super Flower Blood Moon" total lunar eclipse.

The European Space Agency announced plans to launch a space debris removal mission in 2025 with the help of a Swiss start-up called ClearSpace.

A small NASA sounding rocket will launch Sunday night (May 16), creating a brief, colorful light show over the U.S. East Coast. Here's how to watch.

NASA shared an amazing 3D video of its Mars helicopter Ingenuity's third successful flight on the Red Planet.

April's full moon, called the "Super Pink Moon," wowed skywatchers on Monday (April 26) as it shone brightly in the night sky.

A stunning new animation from NASA shows the entrancing dance of two monster black holes in orbit around each other.

SpaceX's Crew-2 mission will launch to the International Space Station on April 22. See photos of the crewmembers and their preparations for launch.

New satellite imagery captures the relentless eruptions of the La Soufrière volcano on St. Vincent, which began April 9.

In his new book "Beyond," author Stephen Walker recounts intimate details of the months, and years, leading up to Yuri Gagarin's historic flight.

NASA has shared a new learning guide for students to create their own video game to explore Mars with a helicopter like Ingenuity, which is expected to make its debut flight this week.

NASA is preparing to fly its Mars helicopter Ingenuity on the Red Planet for the first time, and students can join in the excitement by building paper versions of the craft at home.

NASA’s education team hosted a special webcast for students on Thursday (April 8) to talk about the Mars helicopter Ingenuity and its upcoming first flight on the Red Planet.

Astroscale just launched the first commercial space junk cleanup mission designed to locate and retrieve used satellites and other debris orbiting Earth.