News – Page 50 – Astronomy Now

Mercury has a heart of iron; literally

22 April 2019 Astronomy Now

Mercury’s molten metal outer core surrounds a solidified solid iron inner core, according to an analysis of data collected by the MESSENGER orbiter.

Jupiter-size star generates titanic white-light ‘superflare’

20 April 2019 Astronomy Now

An enormously powerful superflare from a star the size of Jupiter challenges theories about how magnetic fields in such small suns store energy.

A third planet found in binary star system

19 April 2019 Astronomy Now

Astronomers studying data from the Kepler Space Telescope have found a third planet orbiting a binary star system in Cygnus.

SOFIA detects long-sought primeval molecule

18 April 2019 Astronomy Now

Using the SOFIA airborne observatory, scientists have finally detected helium hydride, the first molecule formed in the wake of the Big Bang.

Cassini’s last look at Titan reveals more surprises

17 April 2019 Astronomy Now

During the Cassini spacecraft’s final close flyby of Saturn’s moon Titan, small-but-deep lakes of pure methane were found atop mesa-like landforms.

Mars methane mystery deepens with ExoMars data

16 April 2019 Astronomy Now

In contrast to earlier observations, the ESA-Rososmos ExoMars Trace Gas Orbiter has found a surprising absence of methane in the martian atmosphere.

TESS finds its first Earth-size planet and a sub-Neptune sibling

15 April 2019 Astronomy Now

NASA’s planet-hunting TESS spacecraft has found its first Earth-size planet orbiting a star 53 light years away, along with a larger sub-Neptune sibling.

Curiosity drills into clay unit; InSight ‘mole’ tests continue

13 April 2019 Astronomy Now

NASA’s Mars Curiosity rover has started drilling in a clay-bearing unit on the slope of Mount Sharp where rocks formed in the presence of water are expected.

Israeli probe crashes in attempt to become first privately-funded Moon lander

11 April 2019 Stephen Clark

An Israeli-built spacecraft seeking to become the first privately-developed probe to land on the Moon crashed on descent Thursday, but the mission was widely lauded as a breakthrough for the commercial space industry, and Israeli prime minster Benjamin Netanyahu said the country would try again.

Privately-funded Israeli probe set for daring Moon landing attempt

11 April 2019 Stephen Clark

An Israeli-built spacecraft financed through donations from billionaire philanthropists is set to make history Thursday when it tries to become the first privately-funded probe to land on the Moon.