Only three of these aircraft were built, with one being destroyed and two operating successfully. The X-43 testbed aircraft ...

In the early 1930s, Swiss astronomer Fritz Zwicky observed galaxies in space moving faster than their mass should allow, ...

Sen. Elissa Slotkin of Michigan, another one of the Democrats in question, revealed on Tuesday that the FBI’s ...

The Pentagon on Monday threatened to recall U.S. Senator Mark Kelly, a retired Navy captain, to active duty status in order ...

India's space odyssey is marked by courageous astronauts who have inspired generations. From Rakesh Sharma's pioneering ...

The interstellar comet 3I/ATLAS challenges physics with a missing dust tail, a forward anti-tail, and strange composition.

There is strong evidence that the Ukrainians took out a piece of the Russian air defense network first and then shoved waves ...

The order announced the “Genesis Mission” for AI, a new federal push to mobilize the federal government's research and data ...

Californians may spot a Falcon 9 rocket launch the day before (or after) Thanksgiving as SpaceX attempts a rideshare mission ...

The Pentagon says it's opening an investigation into Arizona Sen. Mark Kelly in the wake of a video of Democratic lawmakers ...

NASA and Boeing are also reducing the number of astronaut flights Boeing's Starliner will fly to the International Space ...