July 2018 – Astronomy Now

Find Martian moons Phobos and Deimos at the Red Planet’s closest approach

30 July 2018 Ade Ashford

Do you like extreme observing challenges? If you own a quality telescope of 25-cm (10-inch) aperture or larger and have excellent sky conditions, then you might just glimpse Phobos and Deimos, the diminutive moons of Mars around the time that the Red Planet is closest to Earth on 31 July.

NASA’s new planet hunter starts work

30 July 2018 Stephen Clark

NASA’s newest observatory in space has started its search for planets around other stars as astronomers zero in on worlds that are ripe for research by follow-up missions like the James Webb Space Telescope.

‘Radio rebound’ observed in aftermath of gamma ray burst

27 July 2018 Astronomy Now

A powerful gamma ray burst two billion light years away produced a long-lasting “radio rebound” shock wave that surprised astronomers, providing new insights into such cataclysmic explosions.

Hubble captures new views of Mars and Saturn near opposition

26 July 2018 Astronomy Now

The Hubble Space Telescope captured stunning new views of Mars and Saturn as the planets neared opposition, lined up with Earth and the Sun. Mars remains obscured by a global dust storm.

Epic campaign confirms relativity near supermassive black hole

26 July 2018 Astronomy Now

Astronomers tracking a star passing close to the supermassive black hole at the heart of the Milky Way have detected relativistic gravitational redshift in light reaching Earth.

Mars Express finds evidence of liquid water under Martian pole

25 July 2018 Astronomy Now

ESA’s Mars Express satellite, using ground-penetrating radar, has detected what appears to be a pool of liquid water below the red planet’s south polar region, a potentially habitable environment.

Pluto and Charon, as an astronaut would see them

23 July 2018 Astronomy Now

Three years after the New Horizons spacecraft raced past Pluto and its large moon Charon, mission scientists have released the most accurate colour views yet, showing the distant worlds as they would appear to an astronaut’s eyes.

Holding Due North

23 July 2018 Astronomy Now

Star trails in Montana’s northern Rocky Mountains feature in this shortlisted image entered in the Royal Observatory Greenwich’s Insight Astronomy Photographer of the Year competition.

Planck confirms standard Big Bang model – but ‘tensions’ remain

21 July 2018 Astronomy Now

The European Space Agency’s Planck spacecraft’s final data release confirms the standard model of the Big Bang in unprecedented detail, but disagreement on how fast the cosmos is expanding remains

X-rays indicate collision of young planets may explain star’s dimming

20 July 2018 Astronomy Now

Astronomers struggling to understand why an unusual stars periodically fades and brightens have collected X-ray observations indicating it may be due to the catastrophic collision of two infant planets.