Stars

The Sun during a solar flare (Image NASA/NOAA)

NASA released an image of the solar flare occurred on January 21 captured by the GOES-16 satellite that the agency runs with NOAA using the Extreme Ultraviolet and X-Ray Irradiance Sensors (EXIS) instrument. It’s specifically aimed to observe the Sun and monitor phenomena such as solar storms, which can have consequences on the activity of satellites but also of power plants and other human activities.

Artist’s impression of the AR Scorpii system (Image M. Garlick/University of Warwick/ESO)

An article published in the journal “Nature Astronomy” describes the discovery of the first white dwarf pulsar, an object so far only hypothesized but never found. A team of researchers from the British University of Warwick identified it in the AR Scorpii (AR Sco) System, composed of a red dwarf and the white dwarf pulsar that a rotation period of just under two minutes.

NGC 6334 and NGC 6357 (Image ESO)

ESO has released one of the largest astronomical images created thanks to the VST (Very Large Telescope Survey Telescope) which includes two cosmic clouds of gas and dust, NGC 6334 and NGC 6357. Because of their shapes, they’re also known respectively with their popular names as the “Cat’s Paw Nebula” and the “Lobster Nebula”.

Artist's impression of Rapid Burster (Image ESA/ATG medialab)

An article published in the journal “Monthly Notices of the Royal Astronomical Society” describes a research that provides an explanation for an astronomical mystery dating back to the 1970s. A team of researchers of the Anton Pannekoek Institute for Astronomy in Amsterdam led by Jakob van den Eijnden discovered a gap in the accretion disk of the binary system MXB 1730-335, known as Rapid Burster for its rapid and discontinuous X-ray flashes.

The Calabash Nebula (Image ESA/Hubble & NASA. Acknowledgement: Judy Schmidt)

A photograph taken by the Hubble Space Telescope shows the Calabash Nebula, a protoplanetary nebula showing the agony of a low-mass star like the Sun. This nebula is also known by the nickname Rotten Egg Nebula because its study revealed that in the gas surrounding it there’s a high concentration of sulfur, the element that causes the characteristic rotten egg smell.