Sgr A*, the supermassive black hole at the center of the Milky Way, is surrounded by a group of stars moving at extreme speeds.
And astronomers have just discovered the quickest of the lot, clocking its fastest speed around Sgr A* at 8% the speed of light.
But the research team, using instruments installed at the European Southern Observatory's Very Large Telescope in Chile, scoured through images taken between 2004 and 2016, adding five new stars, S4711-S4715, to the population and tracking their movements around Sgr A*. Their results show more evidence that a distinct population of stars orbit Sgr A* at distances comparable to the size of our solar system.
Quite a lot has been going on:
Orbit Hair Styling offers a $3,000 hiring bonus for hairdressers | Lewiston Sun Journal
Orbit Hair Styling owner Richard Stone is hoping to catch at least two stylists' attention by offering a $3,000 sign-on bonus at his Lewiston salon. He says it's an especially tight market for attracting new employees. Daryn Slover/Sun Journal file photo Buy this Photo
The owner of Orbit Hair Styling in Lewiston is offering a $300 interview bonus and $3,000 hiring bonus in the quest for two new hairdressers, and yes, Richard Stone says, they are that hard to come by.
VLBA finds planet orbiting small, cool star | EurekAlert! Science News
Using the supersharp radio "vision" of the National Science Foundation's continent-wide Very Long Baseline Array (VLBA), astronomers have discovered a Saturn-sized planet closely orbiting a small, cool star 35 light-years from Earth. This is the first discovery of an extrasolar planet with a radio telescope using a technique that requires extremely precise measurements of a star's position in the sky, and only the second planet discovery for that technique and for radio telescopes.
Will any new smallsat rockets make it to orbit this year? | Ars Technica
In case you hadn't noticed, we're approaching mid-August. As of Wednesday, there are a mere 142 days left in the year. So as the calendar churns toward the end of the year, this is a good time to ask whether any new commercial rockets that launch small satellites will make it to orbit this year.
Back at the optimistic, pre-pandemic beginning of 2020, we had high hopes for the debut of new rockets from Astra, Firefly, and Virgin Orbit. We also expected to see the first flight of Europe's Vega C rocket, which is now confirmed to slip into 2021.
Many things are taking place:
Hubble Spots Small Moon Orbiting Trojan Asteroid Eurybates | Astronomy | Sci-News.com
The trojan asteroid (3548) Eurybates, one of the targets of NASA's upcoming Lucy mission , has a tiny moon.
This image of Eurybates and its moon (circled) was captured by Hubble's Wide Field Camera 3 (WFC3) on September 14, 2018. Image credit: NASA / ESA / Hubble / Noll et al , arXiv: 2008.01858.
Trojan asteroids follow the same orbit as a planet, but stay either around 60 degrees ahead or 60 degrees behind along the orbit.
The Mystery of Titan's Expanding Orbit - Scientific American
Seen through the eyes of some omnipotent time traveler, our solar system—like any planetary system—is a heaving, pulsing thing. Across millions and billions of years its contents ebb and flow.
But some things are assumed to be comparatively dull and unchanging. Saturn’s largest moon, Titan, for instance, was expected to sit in its orbit with little alteration to that position over the billions of years since its formation. Now a study published in Nature Astronomy by Lainey, et al., has used measurements from the Cassini spacecraft (which orbited Saturn from 2004 to 2017) to determine that Titan has an orbit that grows by an astonishing 11 centimeters each year.
First image of 2 exoplanets orbiting a sun-like star released - CNN
(CNN) About 300 light-years away from us, two giant exoplanets are orbiting a young sun-like star.
Lasers in daylight can better detect space debris orbiting Earth, new study suggests
In director Alfonso Cuaron’s 2013 space thriller “Gravity,” Sandra Bullock’s astronaut character dons a suit for a spacewalk in orbit around Earth, upgrading hardware on the Hubble Space Telescope.
Nightmare scenarios like that one might keep astronauts and space mission planners up at night. These scenarios could also become a lot less likely, according to a new study published Tuesday in the journal Nature Communications.
A more precise and versatile technique for detecting space debris was outlined by researchers from the Austrian Academy of Sciences, so that devastating space collisions will firmly remain in the province of science fiction.
Happening on Twitter
Wow wow wow. Just an hour ago, astronomers announced the discovery of a star in our Milky Way Galaxy moving at 8% o… https://t.co/rQOjIIewRb SciBry (from Toronto, Canada he/him) Tue Aug 11 16:15:23 +0000 2020
Fastest star ever seen is moving at 8% the speed of light - https://t.co/Pq9tnrBX8j https://t.co/UeRwjjIS8c fcain (from Courtenay, British Columbia) Wed Aug 12 18:26:02 +0000 2020
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