NASASpaceFlight.com 29 Jun 2020, 19:24 UTC Boeing powered up the Core Stage for the first Space Launch System on the B-2 Test Stand at the NASA’s Stennis Space Center in Mississippi last week following a long stand down due to the coronavirus pandemic. The first Core Stage is at the outdoor facility for a Green Run test campaign that culminates in first-time propellant loading followed by an inaugural test-firing.
Universe Today 29 Jun 2020, 16:44 UTC So you want to colonize Mars, huh? Well Mars is a long ways away, and in order for a colony to function that far from Earthly support, things have to be thought out very carefully. Including how many people are needed to make it work. A new study pegs the minimum number of settlers at 110.
SciTech Daily 29 Jun 2020, 12:13 UTC A team of researchers simulated conditions on water-rich exoplanets in the laboratory and learned something surprising about their geological composition. Out beyond our solar system, visible only as the smallest dot in space with even the most powerful telescopes, other worlds exist. Many of these worlds, astronomers have discovered, may be much larger than Earth and completely covered in water — basically ocean planets with no protruding land masses. What kind of life could develop on such a world? Could a habitat like this even support life?
Universe Today 26 Jun 2020, 22:03 UTC The Moon is easily the most well-studied object in the Solar System, (other than Earth, of course.) But it still holds some puzzles for scientists. Why, for instance, is one side of the Moon so different from the other?
Lights in the Dark 26 Jun 2020, 15:29 UTC Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) and data from the now-retired Spitzer Space Telescope have announced the discovery of a Neptune-sized exoplanet orbiting AU Microscopii (AU Mic for short), a red M-dwarf star 31.93 light-years away and only about 20 to 30 million years old. The star is so young that it’s still surrounded by the protoplanetary disk of material within which planets form, and the planet, named AU Mic b, orbits so closely to the star that it completes an orbit every 8.46 Earth days (that’s a 203-hour-long year!)
New Scientist 26 Jun 2020, 11:17 UTC A planetary system of super-Earths have been found orbiting a nearby calm red dwarf.
Centauri Dreams 25 Jun 2020, 17:15 UTC What we learn about Europa may resonate with other moons in the Solar System, making the study of this ‘ocean world’ even more valuable as we look elsewhere among the gas giants. I notice this morning that a team of researchers from the Jet Propulsion Laboratory has presented results on Europa at the Goldschmidt conference, held virtually from the 21st to 26th of this month. The work models geochemical reservoirs within Europa, analyzing the composition and properties of the core, a layer of silicates, and the ocean itself.
SciTech Daily 25 Jun 2020, 08:35 UTC When the most massive stars die, they collapse under their own gravity and leave behind black holes; when stars that are a bit less massive die, they explode in a supernova and leave behind dense, dead remnants of stars called neutron stars. For decades, astronomers have been puzzled by a gap that lies between neutron stars and black holes: the heaviest known neutron star is no more than 2.5 times the mass of our sun, or 2.5 solar masses, and the lightest known black hole is about 5 solar masses. The question remained: does anything lie in this so-called mass gap?