News – Page 34 – Astronomy Now

Solar Orbiter launched, promises first looks at sun’s hidden poles

11 February 2020 Astronomy Now

ESA’s Solar Orbiter begins its mission to study the Sun from a unique vantage point: an eventually tilted orbit that allows a look at the star’s poles.

Transition from red giant to white dwarf interrupted in unusual binary system

5 February 2020 Astronomy Now

Astronomers have found a binary star system in which a swelling red giant swallowed a smaller companion that then spiralled inward, triggering unusual outbursts.

White dwarf in pulsar binary “drags” space as Einstein predicted

5 February 2020 Astronomy Now

Scientists measure spacetime ‘frame dragging’ around white dwarf by measuring its effects on a companion radio pulsar.

NASA pulls the plug on Spitzer, ending trail-blazing mission

31 January 2020 Astronomy Now

NASA pulls the plug on the Spitzer Space Telescope after more than 16 years of trail-blazing infrared observations, finally bringing the mission to a close.

Daniel K. Inouye Solar Telescope dazzles with first light images

29 January 2020 Astronomy Now

First light images from the 4-metre Daniel K. Inouye Solar Telescope are the sharpest ever achieved from the ground, hinting at discoveries to come.

Analysis indicates Enceladus’ sub-surface ocean may be habitable

28 January 2020 Astronomy Now

A new analysis incorporating data from the Cassini mission suggests Saturn’s icy moon Enceladus may host a habitable environment in its sub-surface ocean.

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.