"Each time a satellite has to maneuver to avoid a potential collision, it uses fuel which is a finite and precious resource." When you purchase through links on our site, we may earn an affiliate ...

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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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 ...

Two months ago, a key staffer for Sen. Ted Cruz said in a public meeting that she was “begging” NASA to release a document that would kick off the second round of a competition among private companies ...

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) ...

Make no mistake: Elon Musk established SpaceX with the goal of making humanity multiplanetary by building a colony on Mars. That's still the long-range plan. Before he can make it happen, however, he ...