The sun has become increasingly active since 2008, a new NASA study shows. Solar activity is known to fluctuate in cycles of 11 years, but there are longer-term variations that can last decades. Case ...

NASA has responded to speculation that mysterious interstellar object 3I/ATLAS is actually an alien starship preparing to invade Earth.

This mission will showcase the capabilities of Astranis and Impulse to rapidly deploy satellites to geostationary orbit without the use of a Heavy-class rocket, a mission profile appealing to ...

Busek Co., a leading manufacturer of high-performance electric propulsion technology for spaceflight, and Maxar Space Systems ...

Nuclear rocket could slash mission times to Mars - Centrifugal nuclear thermal rocket can travel faster with less fuel ...

In a groundbreaking development, Ohio State University has unveiled a new concept for nuclear thermal propulsion that could ...

Rocket Lab posted strong Q2 growth with rising margins, a $1B backlog, and solid liquidity to support Neutron and NSSL ...

How do you control a nuclear space propulsion system? Very carefully. To help with this, the Oak Ridge National Laboratory ...

Instead of using solid fuel elements, this innovative design uses liquid uranium fuel to heat the rocket propellant directly.

On Sept. 12, 2013, Voyager 1, launched 36 years earlier, became the first man-made spacecraft ever to leave the solar system.

New developments in nuclear thermal propulsion technologies may soon enable advanced space missions to the farthest reaches of the solar system.