Space Stories: Strange Flashing Object, New Dwarf Planet in Our Solar System, and a Short-Lived Galaxy

Posted on by onespaceman2000
Image (Credit): CSIRO’s ASKAP radio telescope in Western Australia. (https://www.csiro.au/)

Here are some recent space-related stories of interest.

—Australian Broadcasting Corporation: “Strange Flashing Object Discovered in Deep Space Puzzles Astronomers“

Astronomers have detected a mystery stellar object that emitted pulses of light for two minutes every 44 minutes. A handful of objects like this have been found before, but this is the first to emit both radio waves and X-rays…An international team, led by Curtin University astronomer Ziteng Andy Wang, first detected a radio signal in data captured by CSIRO’s ASKAP radio telescope in Western Australia...By chance, the signal was also spotted by NASA’s Chandra X-ray Observatory on Valentine’s Day last year.

—Newsweek: “Astronomers Think They’ve Discovered a New Dwarf Planet in Our Solar System“

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system. The object—which orbits out beyond Neptune—has been named “2017 OF201” by the team, which was led by Sihao Cheng of the Institute for Advanced Study in Princeton, New Jersey. Cheng and colleagues estimate that the body has a diameter of more than 430 miles, which means that it may be large enough to qualify as a dwarf planet.

—Brighter Side of News: “Astronomers Discover That Galaxies Die Much Earlier Than Expected“

In a Universe that was only 700 million years old, long before Earth even formed, something unexpected happened. A massive galaxy stopped forming stars and went silent. This type of galaxy, called quiescent, typically needs billions of years to grow and then shut down star formation. But thanks to the powerful James Webb Space Telescope (JWST), astronomers have now confirmed that one such galaxy had already died young. This ancient galaxy, called RUBIES-UDS-QG-z7, is now the most distant quiescent galaxy ever confirmed. It challenges current ideas about how quickly galaxies form and evolve in the early Universe. This discovery pushes the boundaries of what scientists thought was possible during cosmic dawn.

Pic of the Week: Here Comes the Sun

Posted on by onespaceman2000
Image (Credit): Image of a sunspot on our Sun (with the United States in the corner for the purpose of comparison) captured by the Daniel K. Inouye Solar Telescope using its Visible Tunable Filter. (VTF/KIS/NSF/NSO/AURA)

This week’s image comes from the National Science Foundation’s (NSF) Daniel K. Inouye Solar Telescope. Using a newly developed Visible Tunable Filter, it is able to produce detailed images of the Sun’s surface.

Carrie Black, NSF program director for the NSF National Solar Observatory, stated:

When powerful solar storms hit Earth, they impact critical infrastructure across the globe and in space. High-resolution observations of the sun are necessary to improve predictions of such damaging storms…The NSF Inouye Solar Telescope puts the U.S. at the forefront of worldwide efforts to produce high-resolution solar observations and the Visible Tunable Filter will complete its initial arsenal of scientific instruments.

You can read much more about the telescope and its filter here.

Pic of the Week: 30 Doradus for Valentine’s Day

Posted on by onespaceman2000
Image (Credit): Composite image of 30 Doradus. (X-ray: NASA/CXC/Penn State Univ./L. Townsley et al.; Infrared: NASA/JPL-CalTech/SST; Optical: NASA/STScI/HST; Radio: ESO/NAOJ/NRAO/ALMA; Image Processing: NASA/CXC/SAO/J. Schmidt, N. Wolk, K. Arcand)

Yes, NASA has an image ready for Valentine’s Day. This image comes from three sources – the Chandra X-ray Observatory, the Hubble Space Telescope, and the Atacama Large Millimeter/submillimeter Array.

Here is more from NASA (and even more can be found at the linked site):

Otherwise known as the Tarantula Nebula, 30 Dor is located about 160,000 light-years away in a small neighboring galaxy to the Milky Way known as the Large Magellanic Cloud (LMC). Because it one of the brightest and populated star-forming regions to Earth, 30 Dor is a frequent target for scientists trying to learn more about how stars are born.

With enough fuel to have powered the manufacturing of stars for at least 25 million years, 30 Dor is the most powerful stellar nursery in the local group of galaxies that includes the Milky Way, the LMC, and the Andromeda galaxy.

The massive young stars in 30 Dor send cosmically strong winds out into space. Along with the matter and energy ejected by stars that have previously exploded, these winds have carved out an eye-catching display of arcs, pillars, and bubbles.

A dense cluster in the center of 30 Dor contains the most massive stars astronomers have ever found, each only about one to two million years old. (Our Sun is over a thousand times older with an age of about 5 billion years.)

Space Stories: Monks and Space, the Largest Structure in the Universe, and a Large Cache of Exocomets

Posted on by onespaceman2000
Credit: Image by Paul Henri Degrande from Pixabay.

Here are some recent stories of interest..

—Vatican News: “Vatican Astronomer Releases ‘A Jesuit’s Guide to the Stars’“

Br Guy Consolmagno, the director of the Vatican Observatory, has published a new book entitled A Jesuit’s Guide to the Stars. Published on the 4th February, the book charts the long history of Jesuit engagement with astronomy. As Consolmagno notes in the book’s introduction, this is a story which has its origin in the very earliest days of the Society of Jesus. The founder of the Jesuit order, St Ignatius of Loyola, says in his autobiography (which, somewhat confusingly, is written in the third person) that “the greatest consolation that he received . . . was from gazing at the sky and stars, and this he did often, and for quite a long time.”

—LiveScience: “Astronomers Discover ‘Quipu’, the Single Largest Structure in the Known Universe“

Astronomers have discovered what may be the largest-scale structure in the known universe — a group of galaxy clusters and clusters of galaxy clusters that spans roughly 1.3 billion light-years across and contains a mind-boggling 200 quadrillion solar masses. The newfound structure is dubbed Quipu after an Incan system of counting and storing numbers using knots on cords.

—Astrobiology: “A Large Number Of Exocomets Have Been Discovered“

CfA astronomers and its Submillimeter Array were critical for identifying a cache of belts where comets may reside outside our Solar System. For the first time, astronomers have imaged dozens of belts around nearby stars where comets and tiny pebbles within them are orbiting. This result reveals regions around 74 stars spanning a wide range of ages – from those recently formed to others billions of years old – showing how comets play a role in the formation of stars and planetary systems.

Space Stories: Advertising in Space, Israeli Astronaut, and Mysterious Deep Space Signals

Posted on by onespaceman2000
Credit: BrandinginAsia.com

Here are some recent stories of interest.

—Space News: “Astronomers Seek Global Ban on Space Advertising“

Astronomers are calling on nations to ban advertising in space that can be seen from the ground, calling it the latest threat to the dark and quiet sky. At a briefing during the 245th Meeting of the American Astronomical Society earlier this month, the organization rolled out a statement calling for bans on “obtrusive space advertising” because of the interference it could cause for groundbased astronomy. Obtrusive space advertising is defined in U.S. federal law as “advertising in outer space that is capable of being recognized by a human being on the surface of the Earth without the aid of a telescope or other technological device.” Such advertising is banned in federal law through prohibitions on granting launch licenses for missions carrying payloads to carry out space advertising.

—Jewish News Syndicate: “Israeli Female Astronaut Will Go to Space with NASA“

Israel has reached an agreement with NASA to send the first Israeli woman astronaut into space, Minister of Innovation, Science and Technology Gila Gamliel said on Monday. The remarks come as Israel is expanding cooperation in space technology with longtime allies such as the U.S., Italy and Azerbaijan, as well as with regional parties to the landmark 2020 Abraham Accords such as the United Arab Emirates.

—Anexartiti: “20 Mysterious Signals Discovered! What Could They Mean for Astronomy?“

A team of researchers from Australia has made a remarkable discovery by identifying over 20 intriguing signals from deep space. This achievement has been compared to the daunting task of finding a single grain of sand on a vast beach. Utilizing innovative technology pioneered by the Commonwealth Scientific and Industrial Research Organisation (CSIRO), these findings have been documented in the Publications of the Astronomical Society of Australia.