Telescope in Utah detects mysterious cosmic ray beyond our galaxy

Tech Insider
Artist's illustration of ultra-high-energy cosmic ray astronomy to clarify extremely energetic phenomena.
Artist's illustration of ultra-high-energy cosmic ray astronomy to clarify extremely energetic phenomena.

OSAKA METROPOLITAN UNIVERSITY/KYOTO UNIVERSITY/RYUUNOSUKE TAKESHIGE

Elon Musk isn't convinced there are aliens out there: 'We're the aliens'

Tech Insider
Elon Musk
Elon Musk says there's been no signs of aliens in his SpaceX work.

Chesnot/Getty Images

Why the sun has two giant holes, and what that means for Earth

Tech Insider
  • Two giant holes, 18 to 30 times the size of Earth, have appeared on the surface of the sun.
  • They could send 1.8 million mph solar winds toward Earth.
  • They're called coronal holes, which are cooler areas that don't glow as bright as others.

Subscribe to outer-space