News

ACT system tracks solar eruptions in 3-D

29 June 2016 Astronomy Now

Scientists at Aberystwyth University have developed an automated method for three-dimensional tracking of massive eruptions from the Sun, called Coronal Mass Ejections (CMEs). The Automated CME Triangulation (ACT) system uses data from three space-based observatories that orbit the Sun at different locations, allowing scientists to view the Sun and CMEs from different angles.

News

Sun’s adolescent storms may have been key to life on Earth

24 May 2016 Astronomy Now

Some 4 billion years ago, the Sun shone with only about three-quarters the brightness we see today, but its surface roiled with giant eruptions spewing enormous amounts of radiation into space. These powerful solar explosions may have provided the crucial energy needed to create greenhouse gas in Earth’s atmosphere, warming the planet and incubating life.

News

Solar storms ignite X-ray aurorae on Jupiter

22 March 2016 Astronomy Now

Solar storms are triggering X-ray aurorae on Jupiter that are about eight times brighter than normal over a large area of the planet and hundreds of times more energetic than Earth’s “northern lights,” according to a new study using data from NASA’s Chandra X-ray Observatory when a giant solar storm arrived at the planet.

Picture This

Tim Peake’s aurora photography masterclass

21 January 2016 Astronomy Now

NASA astronaut Scott Kelly and ESA astronaut Tim Peake shared a series of aurora photographs taken from the International Space Station on 20 January 2016. The dancing lights of the aurora provide spectacular views on the ground, but also capture the imagination of scientists who study incoming energy and particles from the Sun.

News

3000th comet discovered by Solar and Heliospheric Observatory (SOHO)

15 September 2015 Astronomy Now

On 13 September 2015, the ESA/NASA Solar and Heliospheric Observatory (SOHO) discovered its 3,000th comet, cementing its standing as the greatest comet finder of all time. The comet was spotted in SOHO’s data by Worachate Boonplod of Thailand — a citizen scientist typical of the NASA-funded Sungrazer Project volunteers responsible for 95 percent of SOHO comet discoveries.

News

The seasons of the Sun

8 April 2015 Astronomy Now

A team of researchers has determined that the Sun undergoes a type of seasonal variability with its activity waxing and waning over the course of nearly two years. This behaviour affects the approximately 11-year solar cycle, sometimes amplifying solar storms that can buffet Earth’s atmosphere.