We all have some past events that we'd like to undo. These can be minor moments, such as a failed exam or an argument with friends, or world-changing incidents, such as the 2019 outbreak that led to ...

A splashy California-based launch company named Relativity Space shared a photo of sleek-looking rocket hardware on its social media channels last week. The image featured an impressively large ...

What would actually happen if a spacecraft traveled close to the speed of light? Einstein’s theory of relativity predicts bizarre and fascinating effects that would reshape how astronauts experience ...

Want to visit an interesting exoplanet, or dip dangerously close to a black hole? It is not impossible – there’s no law of physics that forbids humans from traveling through space – but it’s just ...

For several years, an innovative, California-based launch company named Relativity Space has been the darling of investors and media. Relativity promised to disrupt launch by taking a somewhat niche ...

Relativity Space — a rocket maker acquired by former Google executive chair Eric Schmidt last year after stumbling on the path to orbit — might just beat SpaceX to Mars. On Tuesday, NASA said it hired ...