In November 1572, a brilliant new star appeared in the constellation Cassiopeia, shining so brightly that it was visible during the day. Danish astronomer Tycho Brahe carefully documented this celestial phenomenon, and the supernova remnant that bears his name has been studied intensively ever since. Now, a new analysis of recent observations suggests that Tycho’s […]

How can artificial intelligence (AI) help astronomers identify celestial objects in the night sky? This is what a recent study published in Nature Astronomy hopes to address as an international team of researchers investigated the potential for using AI to conduct astrophysical surveys of celestial events, including black holes consuming stars or even exploding stars […]

Using the MeerKAT telescope, an international team of astronomers have detected 30 new radio transient pulsars as part of the Meer(more) TRAnsients and Pulsars (MeerTRAP) project. The discovery was reported in a paper published Oct. 20 on the arXiv pre-print server.

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The sun is frequently ejecting huge masses of plasma, called coronal mass ejections (CMEs), into space. They often occur together with sudden brightenings called flares, and sometimes extend far enough to disturb Earth’s magnetosphere, generating space weather phenomena including auroras or geomagnetic storms, and even damaging power grids on occasion.

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Dark matter has two central properties: it has mass like regular matter, and unlike regular matter, it reacts weakly or not at all with light. Neutrinos satisfy these two criteria, but neutrinos move through space at nearly the speed of light, making them a form of hot dark matter. The observations we have suggest that […]