Picture This – Page 31 – Astronomy Now

Mars orbiter sees bedrock on the floor of an ancient crater

2 May 2018 Astronomy Now

NASA’s Mars Reconnaissance Orbiter captures a spectacular enhanced colour image of an ancient crater on the red planet showing rippling sand dunes and eroded bedrock.

Cassini’s view of Saturn’s rings still dazzling

1 May 2018 Astronomy Now

NASA’s Cassini spacecraft plunged into the atmosphere of Saturn in 2017, concluding a hugely successful mission to explore the planet, its rings and icy moons. The spacecraft’s close-up images of Saturn’s ring system likely will remain unmatched for decades to come.

Hubble peers into the heart of the Lagoon Nebula

19 April 2018 Astronomy Now

Marking its 28th anniversary in space, the Hubble Space Telescope peered deep into the heart of the Lagoon Nebula, capturing a spectacular vista of a vast star-forming region familiar to amateur astronomers around the world.

Hubble captures extremely remote galaxy cluster

16 April 2018 William Harwood

The Hubble Space Telescope’s Advanced Camera for Surveys and Wide Field Camera 3 captured an image of a massive galaxy cluster some six billion light years from Earth, part of a program to find targets for the James Webb Space Telescope.

Jupiter’s red spot might be shrinking, but it’s still great!

10 April 2018 William Harwood

The Juno probe’s public-outreach camera routinely captures stunning views of Jupiter cloudtops and storms, including the Great Red Spot, seen here in an image processed by graphic artist Seán Doran. The GRS has been shrinking for years, but it remains easily the largest storm in the solar system and one still worthy of its name.

Taking a shine to Enceladus

3 April 2018 Astronomy Now

Saturn’s rings cast shadows on the planet’s cloud tops, providing a perfect backdrop for the brilliant sphere of the moon Enceladus in this image taken by NASA’s Cassini probe.

Martian moons appear in motion

1 April 2018 Astronomy Now

The Martian moons Phobos and Deimos appear to be in motion in this animation created from 19 images taken by NASA’s orbiting Mars Odyssey probe.

Glowing stellar nurseries in a web of cosmic filaments

26 March 2018 Astronomy Now

A vast star-forming region as seen by the European Space Agency’s Herschel space observatory shows a tangled web of filaments with embedded hot spots where stars are being born. Observations of such filaments indicate a common process is at work to generate such filaments — and stars — from the interstellar medium.

A big storm, by definition, on mighty Jupiter

24 March 2018 Astronomy Now

Citizen scientists process a stunning image of a giant storm in Jupiter’s northern hemisphere taken by NASA’s Juno spacecraft during its 11th close flyby of the giant planet. Bright cloud tops look similar to storm clouds on Earth, although the scale is vastly larger. Juno is giving planetary scientists a unique view of Jupiter from the spacecraft’s polar orbit.

The Crab Nebula in all its spectacular multi-wavelength glory

14 March 2018 Astronomy Now

A newly processed view of the Crab Nebula, combining X-ray emissions, ultraviolet, optical, infrared and radio emissions using five different telescopes, reveals an astonishing level of detail in the evolving supernova blast, a complex tapestry of debris powered by a fast-spinning pulsar, the collapsed remnant of the destroyed star.