Not all space debris burns up in the atmosphere before it makes it back to Earth. PaulFleet/iStock via Getty Images When it comes to space debris, what goes up is coming down more often – and not ...

With just a handful of assumptions, string theory stands alone. Based on the idea that all subatomic particles are made up of vibrating strings of energy, string theory is a candidate for a “theory of ...

The U.S. Space Force is requesting industry input to identify launch providers that could support up to 25 high-priority National Security Space Launch Phase 3 missions scheduled for fiscal years 2027 ...

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From the coming SpaceX IPO excitement to Nvidia's foray into space computing, data centers in space have become the tech industry's new favorite talking point. The space economy could become a $1.8 ...

These swimmers are sure to sink. Human sperm can get lost in space, new research shows. Scientists put sperm to the test to determine whether a child could be conceived in space, using a tiny plastic ...

On Earth human sperm tend to know where to go when it comes to fertilizing an egg in utero. But that may not be the case in space. A new study suggests human sperm may struggle to navigate in ...

An Adelaide University study has found the navigational abilities of sperm are negatively impacted by a lack of gravity. Having a baby in space may require a bit more direction, with new Adelaide ...

An artist’s conception shows the Orion spacecraft’s main engine firing during a lunar flyby, surrounded by eight auxiliary engines built by L3Harris’ Aerojet Redmond facility. (NASA Illustration) ...

Section 1. Purpose. Superiority in space is a measure of national vision and willpower, and the technologies Americans develop to achieve it contribute substantially to the Nation’s strength, security ...