Orbital dynamics show that President Trump’s pledge to land astronauts on Mars couldn’t happen until 2029 at the earliest.

SpaceX was targeting launch of the SpainSat satellite during a two-hour launch window which opened at 8:34 p.m. ET. Liftoff was right on time without delay. The rocket launched from Kennedy Space ...

A SpaceX Starship rocket disintegrated spectacularly just minutes after liftoff, raising questions about the risks of modern ...

Blue Origin's NS-29 New Shepard rocket is expected to launch by late Jan. 31 after a delay if all goes well. Here's what to ...

While New Shepard is best known as a space tourist vehicle, 19 of its 28 flights to date have been uncrewed. The reusable ...

The world is entering a new era of space exploration where both robots and humans will explore the Moon and Mars. Driven by ...

SpaceX is preparing to send its next round of Starlink satellites into lower Earth orbit with a launch scheduled for Monday ...

One of the key questions about Blue Origin is whether it will push toward full reusability with New Glenn. In 2021, Ars first ...

Jeff Bezos’s Blue Origin joined the billionaire’s space race in earnest when its New Glenn rocket roared from a launch pad at ...

Going forward, SpaceX is likely to offer its gigantic Starship rocket as a competitor to New Glenn, and here, the advantage ...