Astronomers discover ancient solar system
Posted: Wed, Jan 28, 2015, 7:36 AM ET (1236 GMT)
Astronomers announced Tuesday the discovery of a solar system with five planets estimated to be 11 billion years old, the oldest solar system yet found. The planets orbit Kepler-444, a star 117 light-years from the Earth and about 25 percent smaller than the Sun. The star has five planets with sizes estimates to be between that of Mercury and Venus, all orbiting very close to the star. Astronomers calculated the star's age, based on measurements of its oscillations, at 11.2 billion years old, making the star the oldest one known to have planets. It also indicates that planetary systems existed within a few billion years after the Big Bang.
Astronomers announced Tuesday the discovery of a solar system with five planets estimated to be 11 billion years old, the oldest solar system yet found. The planets orbit Kepler-444, a star 117 light-years from the Earth and about 25 percent smaller than the Sun. The star has five planets with sizes estimates to be between that of Mercury and Venus, all orbiting very close to the star. Astronomers calculated the star's age, based on measurements of its oscillations, at 11.2 billion years old, making the star the oldest one known to have planets. It also indicates that planetary systems existed within a few billion years after the Big Bang.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
|
|
news links
|
|
Sunday, January 19
New missions are carrying innovative technology, and a little red house, to the moon
CNN — 8:54 am ET (1354 GMT) Tatiana Bailey: Relocating Space Command (again?)
Colorado Springs Gazette — 8:53 am ET (1353 GMT) Former Space Force Officer Tapped to Be New Air Force Undersecretary
Air and Space Forces Magazine — 8:52 am ET (1352 GMT) Space Force officer who was relieved of command tapped for senior Air Force role
Task & Purpose — 8:51 am ET (1351 GMT) Trump picks ousted Space Force officer and anti-woke activist for senior Air Force post
Washington Times — 8:51 am ET (1351 GMT) |
