10 June 2023
Astronomy Now
  • Home
  • The Magazine
    • About
    • Current Issue
    • Subscribe
    • Renew Subscription
      • April last issue
      • May last issue
      • June last issue
  • AstroFest 2023
  • News
  • Observing
    • UK Sky Chart
    • Almanac
    • Scope Calc
    • DSLR Calc
  • Reviews
    • Equipment
    • Book Reviews
  • Spaceflight Now
  • Shop
  • Contact Us
    • Subscriptions
    • Your Views
    • Ask Astronomy Now
    • Editorial
    • Advertising
Latest News
  • [ 7 June 2023 ] Best evidence yet for second supermassive black hole orbiting more massive companion News
  • [ 6 June 2023 ] New software shows promise for coping with photobombing satellites News
  • [ 1 June 2023 ] Webb spots vast plume of water vapor spewing from Saturn’s moon Enceladus News
  • [ 26 May 2023 ] Seeing the universe in X-rays, optical and infrared, all at once News
  • [ 15 May 2023 ] A record-setting explosion as a supermassive black hole gorges on gas News
  • Twitter
  • Facebook

cataclysmic variable

News

Gaia satellite and amateur astronomers spot one in a billion star

17 July 2015 Astronomy Now

The Gaia satellite has discovered a unique binary system where one star is ‘eating’ the other, but neither star has any hydrogen, the most common element in the universe. The system could hold the key to what causes Type Ia supernova explosions: one of the greatest mysteries in modern astrophysics.

Astronomy Now NewsAlert

Get the latest astronomical news and stargazing tips delivered to your inbox.

News Headlines

  • Best evidence yet for second supermassive black hole orbiting more massive companion
    7 June 2023
  • New software shows promise for coping with photobombing satellites
    6 June 2023
  • Webb spots vast plume of water vapor spewing from Saturn’s moon Enceladus
    1 June 2023
  • Seeing the universe in X-rays, optical and infrared, all at once
    26 May 2023
  • A record-setting explosion as a supermassive black hole gorges on gas
    15 May 2023
  • Home
  • The Magazine
    • About
    • Current Issue
    • Subscribe
    • Renew Subscription
      • April last issue
      • May last issue
      • June last issue
  • AstroFest 2023
  • News
  • Observing
    • UK Sky Chart
    • Almanac
    • Scope Calc
    • DSLR Calc
  • Reviews
    • Equipment
    • Book Reviews
  • Spaceflight Now
  • Shop
  • Contact Us
    • Subscriptions
    • Your Views
    • Ask Astronomy Now
    • Editorial
    • Advertising

© 2019 Pole Star Publications Limited

Astronomy Now