One of the most tense interactions came between Isaacman and Sen. Maria Cantwell, D-Wash., who wanted commitments from ...

Photographs show that NASA astronaut Sunita "Suni" Williams came back to Earth with dark hair despite it being gray while she was in space. Rating: Context: The photographs purportedly showing ...

Photographs show that NASA astronaut Sunita "Suni" Williams came back to Earth with dark hair despite it being gray while she was in space. Rating: Context: The photographs purportedly showing ...

The post implied that Williams hadn't actually been in space: "Nine months in 'zero gravity,' no barbers, no showers … but her gray hair magically transformed back to a rich, dark brown — no ...

Scientists are homing in on the nature of a mysterious force called dark energy, and nothing short of the fate of the universe hangs in the balance. The force is enormous — it makes up nearly 70 ...

On March 18, 1965, cosmonaut Alexei Leonov made history - and left the Americans fuming - as he floated for 12 minutes in the dark vacuum ... his autobiography, the astronaut remembered ...

NASA astronauts Butch Wilmore and Suni Williams arrived back on Earth on Tuesday after living in space for a longer-than-expected nine months. The SpaceX Dragon spacecraft carrying Wilmore ...

Dark energy makes up roughly 70% of the universe, yet we know nothing about it. Around 25% of the universe is the equally mysterious dark matter, leaving just 5% for everything that we can see and ...

Dark energy, the mysterious force thought to be driving the ever-faster expansion of the universe, appears to be changing over time, according to new observations released Wednesday. If dark ...

Here’s how it works. New results from the Dark Energy Spectroscopic Instrument (DESI) suggest that the unknown force accelerating the expansion of the universe isn't what we believed it to be.

Since December 1998, astronauts have performed 274 spacewalks at the International Space Station. NASA astronauts Sunita Williams and Butch Wilmore returned to Earth following an extended stay ...