Archive – Page 78 – Astronomy Now

Hottest known exoplanet’s dayside atmosphere a toasty 4,300 C

27 January 2020 Astronomy Now

Temperatures in the dayside atmosphere of the hottest known exoplanet reach a record 4,300 C, hotter than the surfaces of some stars.

European Space Agency says Solar Orbiter launch delayed to 7 February

26 January 2020 Stephen Clark

Officials have delayed the launch of a United Launch Alliance Atlas 5 rocket with the European-built Solar Orbiter spacecraft from Cape Canaveral by two days to Feb. 7, a ripple effect from time spent fixing a minor issue last week during a launch vehicle countdown dress rehearsal.

White dwarf chows down on brown dwarf companion in feeding frenzy

26 January 2020 Astronomy Now

A chance observation buried in the Kepler Space Telescope’s data archive revealed a dwarf nova that brightened by a factor of 1,600 in a single day.

Oldest known asteroid impact may have played role in ending ancient ice age

24 January 2020 Astronomy Now

A heavily-eroded impact structure in Western Australia – Yarrabubba – is now known to be the oldest of the world’s roughly 190 known major impact sites.

Very Large Telescope catches star-forming region “pink handed”

23 January 2020 Astronomy Now

The European Southern Observatory’s Cosmic Gems programme generates a steady stream of spectacular images, including this view of Gum 26, an emission nebula in Vela where new stars are being born.

Astronomers find more bizarre objects orbiting Milky Way’s black hole

16 January 2020 Astronomy Now

Strange objects orbiting the Milky Way’s central black hole appear to be binary stars that were forced to merge under the influence of the hole’s gravity.

Venus dazzles at dusk and closes in on Neptune

13 January 2020 Ade Ashford

Even casual skywatchers cannot fail to notice brightest planet Venus currently hanging like a lantern above the southwest horizon at dusk. But as Venus moves eastwards through Aquarius on successive nights, it draws closer to outermost (and faintest) planet Neptune until the pair reach a particularly close conjunction on the UK evening of Monday, 27 January.

Hubble finds evidence for widely held ‘cold dark matter’ theory

12 January 2020 Astronomy Now

Using the Hubble Space Telescope an eight gravitationally lensed quasars, researchers have found strong evidence for cold dark matter.

Lucy mission gets another asteroid target – a tiny moon

10 January 2020 Astronomy Now

NASA’s Lucy probe will visit a record seven asteroids during its 12-year mission, including one recently found to feature a small moon.

See the Moon buzz the Beehive Cluster in the small hours of 12 January

9 January 2020 Ade Ashford

Observers in the UK with a clear sky high to the south-southeast shortly after midnight on Sunday, 12 January 2020 can see the 16-day-old waning gibbous Moon just three-quarters of a degree north of the beautiful open star cluster Messier 44, otherwise known as Praesepe, or the Beehive Cluster.