Observing

See a summer solstice full Moon rising tonight

Look low to the south-southeast at 11:35pm BST tonight and, if the current British “monsoon” clears, you will see the full Moon rising at dusk at the instant the 2016 summer solstice occurs in the Northern Hemisphere. The last time that this happened on the same UK day was 22 June 1967.

News

Astrophysicists release new study of one of the first stars

A research team has used the NASA/ESA Hubble Space Telescope’s Cosmic Origins Spectrograph to study a body known as BD+44°493, the brightest known second-generation star in the sky. BD+44°493 is thought to have been enriched by elements from one of the first generation of stars and the researchers detected several elements that had never been seen before in such a star.

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How black hole jets break out of their galaxies

A computer simulation of the powerful jets generated by supermassive black holes at the centres of the largest galaxies explains why some burst forth as bright beacons visible across the universe, while others fall apart and never pierce the halo of the galaxy. A jet’s hot ionised gas is propelled by the twisting magnetic fields of the central rotating black hole.

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Ultra-sharp image uncovers the shocking lives of young stars

An unprecedented view from the world’s most advanced adaptive optics system on the Gemini South telescope in Chile probes a swarm of young and forming stars that appear to have been triggered, or shocked, into existence. The group, known as N159W, is located some 158,000 light-years away in the Large Magellanic Cloud (LMC), a satellite to our Milky Way Galaxy.

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ALMA detects most distant signs of oxygen in the universe

An international team of astronomers has used the Atacama Large Millimetre/submillimetre Array (ALMA) to detect glowing oxygen in a distant galaxy seen just 700 million years after the Big Bang. This is the most distant galaxy in which oxygen has ever been unambiguously detected, and it is most likely being ionised by powerful radiation from young giant stars.