May 2018 – Page 3 – Astronomy Now

Multiverse more hospitable than previously thought?

18 May 2018 Astronomy Now

A new computer analysis suggests much higher levels of dark energy would not, as many believe, prevent the formation of stars and planets, implying life might be more common across the Multiverse – assuming it exists – than previously believed.

Edge-on view highlights galaxy’s dust lanes, hides spiral structure

18 May 2018 Astronomy Now

As seen from Earth, galaxies can appear in any number of orientations, from face on, with spiral arms on glorious display, to edge on, with the arms hidden from view behind a flattened plane of stars and dust. While not as spectacular, perhaps, edge-on views provide key insights into galactic structure.

Star formation underway 250 million years after Big Bang

17 May 2018 Astronomy Now

Astronomers using ESO’s Very Large Telescope and the Atacama Large Millimetre/submillimetre Array have observed a galaxy 13.3 billion light years away that includes stars that must have been shining just 250 million years after the Big Bang.

More evidence for water vapour jetting from icy Europa

16 May 2018 Astronomy Now

Data collected by the Galileo spacecraft during a 1997 flyby of Jupiter’s moon Europa indicate the probe likely flew through a plume of water vapor, the latest evidence the icy moon likely harbours a vast sub-surface ocean beneath its frozen crust.

The gift that goes on giving – Cassini at Saturn

16 May 2018 Astronomy Now

Saturn’s rings cast sharp shadows across the planet’s northern hemisphere in a view captured by NASA’s Cassini spacecraft in 2007 at a distance of about 1 million miles, using red, green and blue filters to produce a natural-colour view.

‘Monster’ black hole consuming the Sun’s mass every two days

15 May 2018 Astronomy Now

Australian astronomers have found one of the fastest-growing super-massive black holes in the known universe, a monster 20-billion-solar-mass quasi-stellar object consuming the equivalent of the Sun’s mass every two days.

Peering into the heart of the Milky Way

15 May 2018 Astronomy Now

Data from ESA’s Planck spacecraft and the European Southern Observatory’s international APEX experiment are combined to produce a unique view across the entire plane of the Milky Way galaxy showing details large and small, from the galactic core to its outer neighbourhoods.

Space station instrument fills in blanks about binary pulsar

14 May 2018 Astronomy Now

An instrument aboard the International Space Station has detected a binary star system made up of a fast-spinning pulsar and a compact white dwarf that orbit each other every 38 minutes, a record for an accreting millisecond X-ray pulsar.

Astronomers chance upon mysterious binary companion

13 May 2018 Astronomy Now

Astronomers studying a binary star system in a thick disk of dust chanced upon a large exoplanet – or a small brown dwarf – orbiting at an enormous distance from the parent suns, apparently embedded in its own dust disk.

A tapestry of rippling sand dunes on Mars

12 May 2018 Astronomy Now

Surrounding about a quarter of Mars’ northern polar cap is a vast field of crescent-shaped barchan sand dunes covering an area larger than the U.S. state of California. Seen in summer when the dunes were free of frost, Odyssey captured a stunning tapestry of unearthly wind-blown beauty.