Featured Posts
Astronomy Now
2 Apr 2020, 16:27 UTC
Not so long ago, astronomers thought of the Milky Way’s central bulge as an old folks home where mostly ancient stars congregated and slowly moved about. But more recent observations, including this spectacular view captured by the Hubble Space Telescope, and an analysis of about 10,000 suns in the bulge reveal a much more dynamic environment where stars of various ages move about at different speeds. The faster, younger stars may have been captured as the Milky Way cannibalised smaller galaxies, mingling with older, slower-moving suns.
The Milky Way’s central bulge offers a jewel box packed with glittering stars
2 Apr 2020, 16:27 UTC
Not so long ago, astronomers thought of the Milky Way’s central bulge as an old folks home where mostly ancient stars congregated and slowly moved about. But more recent observations, including this spectacular view captured by the Hubble Space Telescope, and an analysis of about 10,000 suns in the bulge reveal a much more dynamic environment where stars of various ages move about at different speeds. The faster, younger stars may have been captured as the Milky Way cannibalised smaller galaxies, mingling with older, slower-moving suns.
Bad Astronomy
2 Apr 2020, 13:00 UTC
The James Webb Space Telescope (JWST) will be a revolution in astronomy. It sports a whopping 6.5-meter wide mirror, the largest that will ever have been flown into space, and will examine the Universe in infrared light, where asteroids, exoplanets, dust, black holes, and distant galaxies glow. It may reveal evidence of the first stars ever born, peer into atmospheres around planets orbiting other stars, and see the dying light of exploding stars farther than ever before.
Watch as the James Webb telescope unfolds its 18 gold-plated hex mirrors
2 Apr 2020, 13:00 UTC
The James Webb Space Telescope (JWST) will be a revolution in astronomy. It sports a whopping 6.5-meter wide mirror, the largest that will ever have been flown into space, and will examine the Universe in infrared light, where asteroids, exoplanets, dust, black holes, and distant galaxies glow. It may reveal evidence of the first stars ever born, peer into atmospheres around planets orbiting other stars, and see the dying light of exploding stars farther than ever before.
Universe Today
31 Mar 2020, 17:34 UTC
I know you’re Googling “flocculent” right now, unless you happen to be a chemist, or maybe a home brewer. You could spend each day of your life staring at a different galaxy, and you’d never even come remotely close to seeing even a tiny percentage of all the galaxies in the Universe. Of course, nobody knows for sure exactly how many galaxies there are. But there might be up to two trillion of them. If you live to be a hundred, that’s only 36,500 galaxies that you’d look at. Puts things in perspective.
This Galaxy is the Very Definition of “Flocculent”
31 Mar 2020, 17:34 UTC
I know you’re Googling “flocculent” right now, unless you happen to be a chemist, or maybe a home brewer. You could spend each day of your life staring at a different galaxy, and you’d never even come remotely close to seeing even a tiny percentage of all the galaxies in the Universe. Of course, nobody knows for sure exactly how many galaxies there are. But there might be up to two trillion of them. If you live to be a hundred, that’s only 36,500 galaxies that you’d look at. Puts things in perspective.
Physics World Blog
31 Mar 2020, 15:53 UTC
Some of the ice on Mercury is created by chemical reactions triggered by the planet’s extreme daytime heat according to Brant Jones and Thomas Orlando at the Georgia Institute of Technology and NASA’s Menelaos Sarantos.
Solar wind and extreme heat creates ice on Mercury, say researchers - Astronomy and space – Physics World
31 Mar 2020, 15:53 UTC
Some of the ice on Mercury is created by chemical reactions triggered by the planet’s extreme daytime heat according to Brant Jones and Thomas Orlando at the Georgia Institute of Technology and NASA’s Menelaos Sarantos.
Bad Astronomy
31 Mar 2020, 13:00 UTC
We live inside the Milky Way galaxy, and that's a problem.
How big is the Milky Way?
31 Mar 2020, 13:00 UTC
We live inside the Milky Way galaxy, and that's a problem.
Physics World Blog
30 Mar 2020, 15:56 UTC
Adding a space telescope to the earthbound Event Horizon Telescope (EHT) should reveal the delicate series of light rings surrounding a supermassive black hole – according to a team of astrophysicists in the US. As well as providing more precise values for the mass and spin of a black hole, observing these “subrings” could also be a benchmark test of long-baseline interferometry using telescopes on Earth and in space.
Black hole ‘subrings’ could be seen by putting a telescope on the Moon - Astronomy and space – Physics World
30 Mar 2020, 15:56 UTC
Adding a space telescope to the earthbound Event Horizon Telescope (EHT) should reveal the delicate series of light rings surrounding a supermassive black hole – according to a team of astrophysicists in the US. As well as providing more precise values for the mass and spin of a black hole, observing these “subrings” could also be a benchmark test of long-baseline interferometry using telescopes on Earth and in space.
Starts With a Bang!
30 Mar 2020, 14:01 UTC
Atoms can link up to form molecules, including organic molecules and biological processes, in interstellar space as well as on planets. If the ingredients for life are everywhere, then life may be ubiquitous, too.
