NASA says goodbye to Spitzer: See the telescope's most astounding images NASA's Spitzer Space Telescope has been unraveling the mysteries of the cosmos since its launch on Aug. 25, 2003. Spitzer's ...

The Artemis II crew will face intense radiation as the astronauts venture far beyond the protection of Earth. Nasa plans to keep these lunar pioneers safe from cosmic rays and solar flares.

The sun, a searing hot sphere of gas primarily composed of hydrogen and helium, boasts surface and outer atmospheric temperatures ranging from 10,000 to 3.6 million degrees Fahrenheit on its surface ...

(Phys.org)—During a powerful solar blast on March 7, NASA's Fermi Gamma-ray Space Telescope detected the highest-energy light ever associated with an eruption on the sun. The discovery heralds Fermi's ...

Add Yahoo as a preferred source to see more of our stories on Google. The first step on the moon was one of humanity's most exciting accomplishments. Now scientists are planning return trips – and ...

Accelerated to high energies, the particles making up cosmic rays aren’t exactly friendly to life. At least, not to life as we know it. According to a new theory, they could spark a chain of reactions ...

Using NASA’s IXPE, astronomers captured an unprecedented view of a white dwarf star actively feeding on material from a companion. The data revealed giant columns of ultra-hot gas shaped by the star’s ...

"By reproducing relativistic plasma conditions in the lab, we can measure processes that shape the evolution of cosmic jets and better understand the origin of magnetic fields in intergalactic space." ...