Astronomers say they've found a Jupiter-like planet orbiting a star that's a mere 12% the mass of our sun. There may even be another big gas planet lurking in this system, which lies 31 light-years away.
"It was very exciting finding this planet because it was completely unexpected," Morales said. The results indicate "a new population of massive planets may also exist around low-mass stars."
Morales and his team maintain that gravitational instability in a young star's disk of gas and dust could, in some cases, result in the quick formation of huge gas planets — even when the star is minuscule.
The planet orbiting this particularly small and cool red dwarf star, officially known as GJ 3512, is at least half the mass of Jupiter! A big planet orbiting a tiny star? Here's how it can ...www.latimes.com ...big - planet - orbiting - ...star A giant world discovered around a tiny star is putting a new spin on how planets form. Astronomers say they've found a Jupiter-like planet orbiting a star that's a mere 12% the mass of our sun....!! Scientists are unable to measure its dimensions, but models indicate it may be comparable to Jupiter in size, according to Morales.
While you're here, how about this:
How To Discover Wormholes By The Stars That Orbit Them
Within general relativity, wormholes are related to black holes. In a black hole, the matter collapses to a single point, or singularity! Videos for A Big Planet Orbiting A Tiny Star ? Bizarrely Huge Planet Discovered Orbiting Tiny Star National Geographic!! Once the matter enters a black hole, it is forever trapped! An unexpectedly enormous planet is orbiting a tiny star ...www.newscientist.com ...planet -is...Astronomers have spotted an enormous planet orbiting a tiny star about 31 light years away. It is so big that it can't have formed in the way that we think most planets do.!! A wormhole has the same kind of structure on the outside, but instead of being centered on a singularity, it forms a kind of tunnel to either another region of space or another universe! Bizarrely Huge Planet Discovered Orbiting Tiny Star ...planet - tiny - star -space...Until now, Wheatley and his colleagues say, scientists knew of only two similarly large planets orbiting these tiny hosts , called M dwarf stars , and neither of those systems holds a planet as ...!! When matter enters a wormhole, it would travel through the tunnel to the other side. The idea of a wormhole was first proposed by Albert Einstein and Nathan Rosen, which is why they are sometimes called an Einstein-Rosen bridge.
Because wormholes and black holes are similar, they would look the same on the outside. We see black holes all across the universe, most commonly supermassive ones in the centers of galaxies! Scientists surprised by discovery of giant planet orbiting ...www.wfaa.com ...big - planet - tiny - star ...7bd6...Scientists surprised by discovery of giant planet orbiting tiny star The new planet , which is about the size of Jupiter, orbits a tiny sun only 12% as big as our sun, and it's changing the way ...!! If any of them were wormholes, it would be difficult to tell them apart from standard black holes.
Rogue, Starless Planets May Circle Black Holes | Space
Thousands of planets may form and orbit around the kind of supermassive black holes found in the cores of most, if not all, galaxies, a new study finds.
"Planets are not only orbiting around stars, but also around supermassive black holes," study lead author Keiichi Wada, an astrophysicist at Kagoshima University in Japan, told Space.com.
When new stars form, the clouds of gas and dust around them collapse to form disks. Previous research suggested that planets originate within these "protoplanetary disks" as gravity pulls clumps of matter together into larger masses; the Atacama Large Millimeter/submillimeter Array (ALMA) has mapped 20 such planet-building disks around nearby stars to extraordinary detail.
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However, stars are not the only astronomical bodies surrounded by disks of gas and dust. Such disks also often surround supermassive black holes with masses that are millions to billions of times that of Earth's sun. This led Wada and his colleagues to investigate whether planets might form around such black holes.
Nobel prize in physics for discovery of exoplanet orbiting a star | New Scientist
The Nobel prize in physics has been awarded to James Peebles, Michel Mayor and Didier Queloz for their contributions to our understanding of the evolution of the universe and Earth's place in the cosmos.
One half of the award went to James Peebles at Princeton University for theoretical discoveries in physical cosmology, and the other half was jointly awarded to Michel Mayor at the University of Geneva and Didier Queloz at the universities of Geneva and Cambridge for their discovery of an exoplanet orbiting a solar-type star.
Peebles' research over two decades has formed the basis for our understanding of the universe's history after the big bang. He made theoretical predictions about the shape of the universe and the matter and energy that it contains. These were later validated by measurements of background radiation.
Other things to check out:
Bad Astronomy | How do you calculate the orbit of an object in space?
On the blog recently I wrote about 20 new moons of Saturn that were just discovered. Finding them was hard, since the astronomer had to go through images by eye to look for very faint moving objects.
But once he found them, he was able to predict their positions in the future, and look for them in later images. It worked, and the moons were made official.
But how did he do it? By carefully measuring their motions, he could trace their paths around Saturn, their orbits. Given enough observations, the ellipse each makes around the planet can be determined pretty well. An ellipse is a shape with very specific characteristics, and these can be defined mathematically — Johannes Kepler figured this out in the 17th century--
For a given ellipse, only a handful of numbers are needed to define its shape, size, and orientation in space. If you have that, plus where the object was located in its orbit at a given time, you can use the equations of motion of a body under the influence of another body's gravity to predict where the object will be in the future -- And postdict (the opposite of predict) where it was in the past, which can be useful too.
Virgin Orbit to add extra rocket stage to LauncherOne for interplanetary missions - SpaceNews.com
WASHINGTON — Virgin Orbit, while preparing for the first flight of its LauncherOne smallsat rocket, is in the process of choosing an engine for a three-stage variant that would be capable of sending payloads to other planets.
John Fuller, Virgin Orbit advanced concepts director, said the company is deciding between three "highly energetic third stage" options for LauncherOne that would enable the rocket to launch up to 50 kilograms to Mars or 70 kilograms to Venus. The "Exploration 3-Stage Variant" of LauncherOne would also have the ability to launch around 100 kilograms to the moon or toward Lagrange points, he said.
"What we do is we take that third stage and bring the overall impulse of the vehicle up to a point where we can reach very high energies to launch to cis-lunar, interplanetary or even asteroid targets," Fuller said Oct. 24 at the 70th International Astronautical Congress here.
It's a quick an easy switch-up, with big rewards for the planet. https://t.co/yGVSrVZRaW NatGeoTravel (from Washington, D.C.) Sat Oct 26 20:00:28 +0000 2019
Comic 'Planet of the Nerds' is set to head to the big screen thanks to Paramount Players https://t.co/2qsfQeriJz THR (from Hollywood, CA) Fri Oct 25 20:50:25 +0000 2019
Sanitary pads and balloons in crab's gastric mill , stomach and gills . We are at war with these species because o… https://t.co/G8X91u9gxU AfrozShah1 (from Versova, Mumbai, India) Mon Oct 21 02:40:04 +0000 2019
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