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Tech & Science Is the Milky Way Galaxy Getting Gassier? A New Study Says Yes

06:45  14 october  2019
06:45  14 october  2019 Source:   newsweek.com

New planet discovered in orbit of young Milky Way star

New planet discovered in orbit of young Milky Way star A second planet has been discovered circling Beta Pictoris, a fledgling star in our own galaxy offering astronomers a rare glimpse of a planetary system in the making, according to a study published Monday. 

Hubblesite said the study offers that one theoretical source behind the Milky Way 's "unbalanced books" is the intergalactic medium—a mass of hydrogen gas believed to exist in between different galaxies . However, Fox, an astronomer for the Space Telescope Science Institute (which performs

Second, they suggest that the Milky Way is using its impressive gravitational pull to swipe gas from When gases fall back into our galaxy , they contribute to the formation of new stars and planets. " Studying our own galaxy in detail provides the basis for understanding galaxies across the universe

a star in the middle of the night: An image of a the Orion Nebula situated in the Milky Way, seen from Wundwin, near the Myanmar city of Mandalay.  Scientists have discovered a surplus gas flowing into the Milky Way Galaxy. © YE AUNG THU/AFP/Getty Images An image of a the Orion Nebula situated in the Milky Way, seen from Wundwin, near the Myanmar city of Mandalay. Scientists have discovered a surplus gas flowing into the Milky Way Galaxy.

An excessive amount of gas flowing into the Milky Way galaxy has been discovered by astronomers—though the reason behind the phenomenon remains a mystery.

According to a news release from NASA's Hubblesite, about 10 years' worth of data from the Hubble Space Telescope shows there has been more gas coming in than out, said Andrew Fox, an astronomer and lead author of a forthcoming study for The Astrophysical Journal.

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A new research effort to study the movement of material into and out of our galaxy reveals that It’s possible, the scientists say , that the Milky Way is siphoning off gas from much smaller galaxies in its orbit. If this is the case, our galaxy is essentially robbing smaller galaxies of their mass, potentially

Our Milky Way galaxy will survive in its current form a bit longer than some astronomers had thought, a new study suggests. The Milky Way and Andromeda will collide about 4.5 billion years from now, a new study based on observations by Europe's Gaia spacecraft suggests.

When employing Cosmic Origins Spectrograph (COS) technology through the telescope, gas heading away from the galaxy appears redder, while gas coming toward it appears bluer. This led to the unexpected realization that the amount of gas coming into to the Milky Way is far greater than that which is escaping.

"Our Milky Way is a frugal galaxy," Hubblesite explained. "Supernovas and violent stellar winds blow gas out of the galactic disk, but that gas falls back onto the galaxy to form new generations of stars."

The process itself—which has occurred for billions of years—does not explain why there is a surplus of gas in the galaxy rather than equilibrium.

Hubblesite said the study offers that one theoretical source behind the Milky Way's "unbalanced books" is the intergalactic medium—a mass of hydrogen gas believed to exist in between different galaxies.

Milky Way's Supermassive Black Hole Seems to Be Getting Hungrier and Scientists Aren't Sure Why

Milky Way's Supermassive Black Hole Seems to Be Getting Hungrier and Scientists Aren't Sure Why "We have never seen anything like this in the 24 years we have studied the supermassive black hole," researcher Andrea Ghez said.

The Milky Way apparently passed close enough to the Sagittarius Dwarf Elliptical Galaxy , a satellite galaxy to the Milky Way , that the gravity of According to Teresa Antoja, one of the authors of a new study published on arXiv: "We have here provided the clearest evidence that our own Galaxy disk

These smaller galaxies orbit around the Milky Way and are useful in understanding the Milky Way Many satellites of those "sibling" galaxies are actively pumping out new stars, but the Milky Way 's satellites "We use the Milky Way and its surroundings to study absolutely everything," said Yale

However, Fox, an astronomer for the Space Telescope Science Institute (which performs science operations for Hubble), believes that the Milky Way is able to use its gravitational pull to steal gas reserves from smaller, nearby galaxies.

The study's co-author, Rongmon Bordoloi of North Carolina State University, added: "The original Hubble COS observations were taken to study the universe far beyond our galaxy, but we went back to them and analyzed the Milky Way gas in the foreground. It's a credit to the Hubble archive that we can use the same observations to study both the near and the more distant universe. Hubble's resolution allows us to simultaneously study local and remote celestial objects."

The Hubble Telescope first launched in on April 24, 1990, and has made more than a million observations since then. Using two 25-foot solar panels, it gets its energy from the sun and sends out roughly 120 gigabytes of data once a week.

Experts say as of right now, the Milky Way is the only galaxy we are able to monitor this closely with the telescope.

Supermassive black hole ejects star from Milky Way Galaxy .
Astronomers spotted the star just 29,000 light-years away from Earth — "practically next door by astronomical standards"Researchers, led by Sergey Koposov of Carnegie Mellon University's McWilliams Center for Cosmology as part of the Southern Stellar Stream Spectroscopic Survey (S5), spotted the star — known as S5-HVS1 — in the constellation Grus. According to a press release Tuesday, the star was just traveling just 29,000 light-years away from Earth, or "practically next door by astronomical standards.

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