Category Astronomy/Space

Solar Orbiter’s First images reveal ‘campfires’ on the Sun

Solar Orbiter spots | Credit: Solar Orbiter/EUI Team (ESA and NASA); CSL, IAS, MPS, PMOD/WRC, ROB, UCL/MSSL
Solar Orbiter spots ‘campfires’ on the Sun. Locations of campfires are annotated with white arrows.
Credit: Solar Orbiter/EUI Team (ESA and NASA); CSL, IAS, MPS, PMOD/WRC, ROB, UCL/MSSL

ESA/NASA mission returns first data, snaps closest pictures of the Sun. The first images from Solar Orbiter, a new Sun-observing mission by ESA and NASA, have revealed omnipresent miniature solar flares, dubbed ‘campfires’, near the surface of our closest star.

According to the scientists behind the mission, seeing phenomena that were not observable in detail before hints at the enormous potential of Solar Orbiter, which has only just finished its early phase of technical verification known as commissioning.

“These are only the first images and we can already see interesting new phenomena,” says Da...

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Breakthrough in Deciphering Birth of Supermassive Black Holes

Black hole image
A research team led by Cardiff University scientists say they are closer to understanding how a supermassive black hole (SMBH) is born thanks to a new technique that has enabled them to zoom in on one of these enigmatic cosmic objects in unprecedented detail.

Astronomers zoom in on black hole with one of the lowest masses ever observed in nearby. A research team led by Cardiff University scientists say they are closer to understanding how a supermassive black hole (SMBH) is born thanks to a new technique that has enabled them to zoom in on one of these enigmatic cosmic objects in unprecedented detail.

Scientists are unsure as to whether SMBHs were formed in the extreme conditions shortly after the big bang, in a process dubbed a ‘direct collapse’, or were grown much later from ‘seed...

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Fleeting flash is most-distant Optical Afterglow from Gamma-ray Burst ever detected

noirlab2017a â€“ Gamma-ray burst afterglow
The afterglow of GRB181123B, captured by the Gemini North telescope. The afterglow is marked with a circle.
Credit: International Gemini Observatory/NOIRLab/NSF/AURA/K. Paterson & W. Fong (Northwestern University)
Image processing: Travis Rector (University of Alaska Anchorage), Mahdi Zamani & Davide de Martin

Rapid follow-up of the optical afterglow from one of the most distant confirmed short gamma-ray bursts (SGRB), thought to be the merger of two neutron stars, is casting new light on these enigmatic objects...

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Gigantic, Red and full of Spots

Three Paths to Red Giants with Spots. (Image: MPs) 

About eight percent of red giants are covered by sunspot-like, dark areas; these stars rotate faster than others of their kind. Starspots are more common among red giant stars than previously thought. Astronomers report that approximately eight percent of red giants exhibit such spots. Although red giants are generally regarded as slowly rotating stars, those with starspots are apparently an exception. The new publication offers a comprehensive analysis of the reasons for their short rotation periods.

Among the Sun’s most striking features are its sunspots, relatively darker areas compared to the rest of the surface, some of which are visible from Earth even without magnification...

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