28 June 2022
Astronomy Now
  • Home
  • The Magazine
    • About
    • Current Issue
    • Subscribe
    • Renew Subscription
      • August last issue
      • July last issue
      • June last issue
  • AstroFest
  • 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
  • [ 9 June 2022 ] Micrometeoroid dings James Webb mirror segment News
  • [ 12 May 2022 ] Milky Way’s supermassive black hole shines in stunning first portrait News
  • [ 9 May 2022 ] Webb optical alignment complete and virtually perfect News
  • [ 2 May 2022 ] Ingenuity zooms over Mars rover’s discarded parachute and backshell News
  • [ 14 April 2022 ] The largest comet ever seen has been measured – and it’s a whopper News
  • Twitter
  • Facebook

AM Canum Venaticorum

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

  • Micrometeoroid dings James Webb mirror segment

    9 June 2022
  • Milky Way’s supermassive black hole shines in stunning first portrait

    12 May 2022
  • Webb optical alignment complete and virtually perfect

    9 May 2022
  • Ingenuity zooms over Mars rover’s discarded parachute and backshell

    2 May 2022
  • The largest comet ever seen has been measured – and it’s a whopper

    14 April 2022
  • Home
  • The Magazine
    • About
    • Current Issue
    • Subscribe
    • Renew Subscription
      • August last issue
      • July last issue
      • June last issue
  • AstroFest
  • 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