WASHINGTON (TIP): Scientists have discovered that an old star — 176 light years away from Earth — thought to be past its prime may still be creating new planets. The disk of material surrounding the surprising star called TW Hydrae may be massive enough to make even more planets than we have in our own solar system, Nasa said in a statement.
The findings were made using the European Space Agency’s Herschel Space Telescope, a mission in which Nasa is a participant. At roughly 10 million years old and 176 light years away, TW Hydrae is relatively close to Earth by astronomical standards.
It is relatively young but, in theory, it is past the age at which giant planets already may have formed. “We didn’t expect to see so much gas around this star,” said lead researcher Edwin Bergin of the University of Michigan in Ann Arbor. “Typically stars of this age have cleared out their surrounding material, but this star still has enough mass to make the equivalent of 50 Jupiters,” Bergin said. In addition to revealing the peculiar state of the star, the findings also demonstrate a new, more precise method for weighing planet-forming disks. The new method can directly probe the gas that typically goes into making planets.