Space News & Blog Articles

Based on what we can observe, the universe appears to be almost 28 billion light-years in diameter. However, it is far larger than that.

Learn how stars form, how stars and constellations are named, what happens when stars like our sun evolve, and ultimately, die.

The cosmic microwave background (CMB) is primeval radiation emitted shortly after the Big Bang. Regarded as an 'echo' of the Big Bang, CMB fills the universe.

A Japanese company that plans to put a robotic lander on the surface of the moon later this year had to postpone its second planned mission by at least 12 months.

Astronomers have discovered a mysterious, flickering object in the Milky Way that belches enormous amounts of energy toward Earth three times an hour.

The country is already testing a radiation vest on Artemis 1, the first uncrewed mission of the program.

As Comet Leonard bid farewell to Earth and flew past Venus, a sun-studying spacecraft flew through the comet's long tail, giving humans a new perspective on the icy wanderer.

The successes notched by Webb, the biggest and most complex space telescope ever launched, reflect the grit and unity of thousands of people who worked together to place it in the heavens.

The Higgs boson particle could have kept our universe from collapsing within a larger multiverse, physicists say.

SpaceX has won a contract, worth over $102 million, to transport military supplies and humanitarian aid around the world using a rocket.

China launched the first of a pair of radar satellites that will provide important geological data following earthquakes and landslides.

The first animals reached space in 1947, but it wasn't until 1960 that animals orbited Earth and landed safely.

NASA released a new video today (Jan. 27) to remember the three crews and other fallen astronauts who lost their lives in the pursuit of space exploration.

New evidence finds substantial water on Mars flowed as recently as 2 billion years ago.

Astroscale has suspended its ELSA-d demonstration mission in Earth orbit after detecting "anomalous spacecraft conditions," the Japanese startup announced on Twitter Wednesday (Jan. 26).

The particle was found by smashing billions of lead atoms into each other at extreme speeds.

Three months after launch, a new NASA asteroid spacecraft is still getting settled into its life beyond Earth.

Many sci-fi movie monsters have tried to end the human race, but which ones should we really be worried about?

Inside the latest issue of All About Space is our complete guide to exoplanets where we peer into the most extreme alien worlds and hunt for Earth 2.0.

Sirius, also known as the Dog Star or Sirius A, is the brightest star in Earth's night sky. The name means "glowing" in Greek — a fitting description, as only a few planets and the International Space Station outshine this star.

On the 55th anniversary of NASA's fatal Apollo 1 fire, the agency's lessons learned live on as Orion aims for the moon.