Astronomy News

Courtesy of Science Daily

Welcome to Sea and Sky's Astronomy News. Here you can find links to the latest space news headlines on the topic of astronomy. Click on any yellow title below to view the full news article. The news article will open in a new browser window. Simply close the browser window when you are finished reading the article to return to the news article listing. You can use the "Click for More" link to go to a page with more news headlines.

 

Astronomy News -- ScienceDaily
Updated : Fri, 03 Apr 2020 01:37:55 EDT

Hubble finds best evidence for elusive mid-sized black hole
Astronomers have found the best evidence for the perpetrator of a cosmic homicide: a black hole of an elusive class known as 'intermediate-mass,' which betrayed its existence by tearing apart a wayward star that passed too close.
Publ.Date : Tue, 31 Mar 2020 16:22:51 EDT

A Martian mash up: Meteorites tell story of Mars' water history
Researchers probed Martian meteorites to reconstruct Mars' chaotic history. Their findings suggest that Mars might not have had a global magma ocean.
Publ.Date : Mon, 30 Mar 2020 11:03:36 EDT

ALMA resolves gas impacted by young jets from supermassive black hole
Astronomers obtained the first resolved image of disturbed gaseous clouds in a galaxy 11 billion light-years away by using the Atacama Large Millimeter/submillimeter Array (ALMA). The team found that the disruption is caused by young powerful jets ejected from a supermassive black hole residing at the center of the host galaxy. This result will cast light on the mystery of the evolutionary process of galaxies in the early Universe.
Publ.Date : Fri, 27 Mar 2020 11:37:55 EDT

Paired with super telescopes, model Earths guide hunt for life
Astronomers have created five models representing key points from our planet's evolution, like chemical snapshots through Earth's own geologic epochs. The models will be spectral templates for astronomers to use in the approaching new era of powerful telescopes, and in the hunt for Earth-like planets in distant solar systems.
Publ.Date : Thu, 26 Mar 2020 14:44:50 EDT

Looking for dark matter close to home
Eighty-five percent of the universe is composed of dark matter, but we don't know what, exactly, it is.
Publ.Date : Thu, 26 Mar 2020 14:44:04 EDT

Astronomers use slime mould to map the universe's largest structures
The behaviour of one of nature's humblest creatures and archival data from the NASA/ESA Hubble Space Telescope are helping astronomers probe the largest structures in the Universe.
Publ.Date : Thu, 26 Mar 2020 12:41:24 EDT

Star formation project maps nearby interstellar clouds
Astronomers have captured new, detailed maps of three nearby interstellar gas clouds containing regions of ongoing high-mass star formation. The results of this survey, called the Star Formation Project, will help improve our understanding of the star formation process.
Publ.Date : Mon, 23 Mar 2020 10:13:50 EDT

Expanding universe: We may be in a vast bubble
The few thousand galaxies closest to us move in a vast 'bubble' that is 250 million light years in diameter, where the average density of matter is half as large as for the rest of the universe. This is the hypothesis put forward by a theoretical physicist to solve a conundrum that has been splitting the scientific community for a decade: at what speed is the universe expanding?
Publ.Date : Fri, 20 Mar 2020 19:27:53 EDT

The strange orbits of 'Tatooine' planetary disks
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have found striking orbital geometries in protoplanetary disks around binary stars. While disks orbiting the most compact binary star systems share very nearly the same plane, disks encircling wide binaries have orbital planes that are severely tilted. These systems can teach us about planet formation in complex environments.
Publ.Date : Thu, 19 Mar 2020 10:32:09 EDT

Black hole team discovers path to razor-sharp black hole images
A team of researchers have published new calculations that predict a striking and intricate substructure within black hole images from extreme gravitational light bending.
Publ.Date : Wed, 18 Mar 2020 14:37:57 EDT

New telescope design could capture distant celestial objects with unprecedented detail
Researchers have designed a new camera that could allow hypertelescopes to image multiple stars at once. The enhanced telescope design holds the potential to obtain extremely high-resolution images of objects outside our solar system, such as planets, pulsars, globular clusters and distant galaxies.
Publ.Date : Wed, 18 Mar 2020 14:37:48 EDT

On the origin of massive stars
A scene of stellar creation, captured by the NASA/ESA Hubble Space Telescope, sits near the outskirts of the famous Tarantula Nebula. This cloud of gas and dust, as well as the many young and massive stars surrounding it, is the perfect laboratory to study the origin of massive stars.
Publ.Date : Wed, 18 Mar 2020 10:44:25 EDT

Scientists discover pulsating remains of a star in an eclipsing double star system
Scientists have discovered a pulsating ancient star in a double star system, which will allow them to access important information on the history of how stars like our Sun evolve and eventually die.
Publ.Date : Mon, 16 Mar 2020 14:14:47 EDT

Mercury's scorching daytime heat may help it make its own ice at caps
Despite Mercury's 400-degree Celsius daytime heat, there is ice at its caps. And now a study shows how that Vulcan scorch probably helps the planet closest to the sun make some of that ice.
Publ.Date : Fri, 13 Mar 2020 15:53:29 EDT

What can you do with spiral graph? Help understand how galaxies evolve
Researchers have developed a technique to accurately measure the winding arms of spiral galaxies that is so easy, virtually anyone can participate. This new and simple method is currently being applied in a citizen science project, called Spiral Graph, that takes advantage of a person's innate ability to recognize patterns, and ultimately could provide researchers with some insight into how galaxies evolve.
Publ.Date : Fri, 13 Mar 2020 15:53:20 EDT

Exoplanet where it rains iron discovered
Researchers have observed an extreme planet where they suspect it rains iron. The ultra-hot giant exoplanet has a day side where temperatures climb above 2400 degrees Celsius, high enough to vaporize metals. Strong winds carry iron vapor to the cooler night side where it condenses into iron droplets.
Publ.Date : Wed, 11 Mar 2020 12:18:32 EDT

Astronomers use slime mold model to reveal dark threads of the cosmic web
A computational approach inspired by the growth patterns of a bright yellow slime mold has enabled a team of astronomers and computer scientists to trace the filaments of the cosmic web that connects galaxies throughout the universe.
Publ.Date : Tue, 10 Mar 2020 12:47:08 EDT

Discovery points to origin of mysterious ultraviolet radiation
Lyman-alpha blobs (LABs) are gigantic clouds of hydrogen gas that produce a special type of ultraviolet light known as Lyman-alpha emission. An extremely powerful energy source must produce this radiation, but scientists debate what that energy source is. A study of Lyman-alpha blob 6 (LAB-6) is the first LAB with strong evidence of an infalling gas feature. The findings suggest that star-forming galaxies are likely the primary energy source of Lyman-alpha radiation emitted from LAB-6.
Publ.Date : Mon, 09 Mar 2020 16:52:42 EDT

Astronomers pinpoint rare binary brown dwarf
Astronomers working on 'first light' results from a newly commissioned telescope in Chile made a chance discovery that led to the identification of a rare eclipsing binary brown dwarf system.
Publ.Date : Mon, 09 Mar 2020 13:00:57 EDT

New type of pulsating star discovered
Two research teams searching NASA's TESS Explorer data found an unusual star. Pooling their resources they discovered a binary star that pulsates on one side - the first such stellar object discovered.
Publ.Date : Mon, 09 Mar 2020 13:00:13 EDT