Rare extreme helium star identified by astronomers0
- From Around the Web, Space
- June 29, 2017
Astronomers have identified another rare example of an extreme helium star.
Astronomers have identified another rare example of an extreme helium star.
Observations suggest that black holes swallow doomed stars whole, increasing the mystery surrounding these celestial monsters
Some have cast doubt about the existence of black hole event horizons from which nothing, not even light, can escape the gravitational pull.
Astronomers have found evidence of a star that whips around a likely black hole twice an hour. This could be the tightest orbital dance ever seen by a black hole and a companion star in our own Milky Way galaxy.
For the first time, scientists using NASA’s Hubble Space Telescope have witnessed a massive object with the makeup of a comet being ripped apart and scattered in the atmosphere of a white dwarf, the burned-out remains of a compact star.
The earliest supermassive black holes may have been big to start with. If so, it would help explain the recent detection of such beasts within a billion years of the big bang.
Most distant object ever observed by ALMA
There’s a star about 370 light-years from here that’s pulsating in response to its unusually heavy planetary companion. It’s the first time that astronomers have seen this sort of interaction between a planet and its host star.