SciTech Daily 15 Oct 2021, 10:31 UTC The last decades of “exoplanet hunting” – the search for planets orbiting stars other than the Sun – have allowed us to better understand the evolutionary paths leading to the current architecture of our planetary system as well as of other discovered systems. To date, the discovery of 4715 exoplanets belonging to 3247 planetary systems has been confirmed, and there are approximately 5900 planets awaiting confirmation.
Bad Astronomy 14 Oct 2021, 13:00 UTC You are made of star stuff. Carl Sagan said this in his series Cosmos, and it’s literally true. We know the early Universe only had hydrogen and helium (and a soupçon of lithium) in it, and all the heavier elements — carbon, oxygen, phosphorus, and more — were made in stars. These were then ejected into space, eventually making their way into you (some steps may have been skipped here for brevity).
Universe Today 13 Oct 2021, 17:06 UTC LOFAR sees ‘exoplanet aurorae’ near distant red dwarf suns.
Next Generation Telescopes Could Detect the Direct Collapse of Enormous Black Holes Near the Beginning of Time13 Oct 2021, 12:57 UTC The first black holes to appear in the universe may have formed from the direct collapse of gas. When they collapsed, they released a flood of radiation, including radio waves. A new study has found that the next generation of massive radio telescopes may be able to detect these bursts, giving precious insights into a critical epoch in the history of the universe.
New Scientist 12 Oct 2021, 11:00 UTC Strange radio signals are coming from the direction of the centre of the galaxy and we aren’t sure what is emitting them. They turn on and off seemingly at random, and their source must be unlike anything else we have seen before.
Universe Today 11 Oct 2021, 14:45 UTC It’s been a long and winding road getting the James Webb Space Telescope from concept to reality. And finally, after decades of planning, work, delays, and cost overruns, the next generation of space telescopes is finally ready to launch. But even now, as the telescope might be secretly traveling by cargo ship to the European Space Agency (ESA) launch site in French Guiana, everyone involved with the JWST project knows a successful launch isn’t the final victory.
Gravitational-Wave Observatories Should be Able to Detect Primordial Black Hole Mergers, if They’re out There11 Oct 2021, 12:52 UTC The tumultuous era of the big bang may have been chaotic enough to flood the universe with primordial black holes. Eventually some of those black holes will find each other and merge, sending out ripples of gravitational waves. A comprehensive search for those gravitational wave signatures hasn’t found anything, putting tight constraints on the abundance of these mysterious objects.
Starts With a Bang! 8 Oct 2021, 14:01 UTC If we were born trillions of years in the future, could we even figure out our cosmic history?
ESO Blog 8 Oct 2021, 10:00 UTC Ten years ago this week, the Atacama Large Millimetre/submillimetre Array, also known as ALMA, officially opened to astronomers for “early science”. Since then, ALMA has detected complex molecules, discovered discs where planets are forming, and has even helped give us the first glimpse of a black hole. To find out more about how this ambitious project came to be, we spoke to Richard Hills, ALMA Project Scientist; Itziar de Gregorio-Monsalvo, ESO Staff Astronomer when ALMA started operating and now Head of the Office for Science in Chile; and Paola Andreani, Head of the European ALMA Regional Centre at that time and now Head of the Office for Science in Garching.