Archive – Page 341 – Astronomy Now

Hubble sees the beautiful side of galaxy IC 335

25 December 2014 Astronomy Now

Located in the Fornax Galaxy Cluster some 60 million light-years from Earth, IC 335 is an edge-on lenticular system — an intermediate state in galaxy morphological classification schemes between true spiral and elliptical galaxies.

Sun sizzles in high-energy X-rays

23 December 2014 Astronomy Now

Designed to study black holes, supernova remnants and other extreme objects beyond our Solar System, NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) has captured the most sensitive portrait of the Sun ever taken in high-energy X-rays.

The darker side of Saturn’s rings

23 December 2014 Astronomy Now

This image, taken by the Cassini probe, depicts Saturn’s main rings much darker than normal.

The Milky Way’s new neighbour

22 December 2014 Astronomy Now

The Local Group of galaxies has just grown in number with the Hubble Space Telescope discovery of KKs 3 — a dwarf spheroidal some 7 million light-years away in the far southern constellation of Hydrus.

Did Earth receive its water from comets, or geologically from within?

21 December 2014 Astronomy Now

Was the Earth dry and inhospitable to life until icy comets pelted the planet and deposited water on the surface? Two researchers at Ohio State University believe that Earth was formed with water in its interior and propose a mechanism for bringing it to the surface.

Is that a moon behind you?

21 December 2014 Astronomy Now

Tethys appears to be peeking out from behind Rhea in this image from the Cassini probe. Scientists believe that Tethys’ surprisingly high albedo is due to the water ice jets emerging from its neighbour, Enceladus.

Philae’s first landing: it’s all a blur

20 December 2014 Astronomy Now

The European Space Agency’s Philae lander captured this blurred view during its first bounce after first contacting the surface of comet 67P/Churyumov-Gerasimenko in November.

Europe’s Venus Express mission is at its end

19 December 2014 Stephen Clark

The European Space Agency’s Venus Express spacecraft has run out of fuel and will burn up in the atmosphere of Venus in January after a successful eight-year mission.

NASA’s Kepler spacecraft proves it can still find planets

19 December 2014 Astronomy Now

When the primary mission of NASA’s Kepler spacecraft ended in May 2013 due to a failure of its stabilisation system, a team of scientists and engineers developed an ingenious strategy to control the spacecraft. The resulting second mission, K2, has a newfound planet — HIP 116454b

Mars rover detects methane spike, organic molecules

17 December 2014 William Harwood

Carefully analyzing data collected by NASA’s Mars Curiosity rover, scientists discovered a sudden, unexpected spike in methane levels in the martian atmosphere over a two-month period one year ago.