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Feb 25, 2023

Scientists Spot Never-Before Seen White Dwarf As Small As Our Moon But More Massive Than Our Sun

Posted by in category: space

Astronomers have discovered a white dwarf with unprecedented characteristics. It is simultaneously the smallest and most massive white dwarf ever observed by astronomers.

Astronomers at the Zwicky Transient Facility, which operates at the Palomar Observatory at California Institute of Technology, have discovered an extremely unusual white dwarf star with an extreme magnetic field nearly one billion times more powerful than the one of our Sun. The unique celestial object is both the smallest and most massive white dwarf discovered to date.

White dwarfs are dense, collapsed remnants of stars that were once about eight times more massive than the Sun. They form when stars literally shed their outer layers at the end of their life.

Feb 25, 2023

Recently, a massive galaxy around our own suddenly appeared

Posted by in category: space

Recently, astronomers observing the sky received a shocking discovery. They found a large galaxy in a hitherto unexplored part of our galaxy. It materialized suddenly out of thin air.

So, how did the galaxy known as Crater 2 accomplish this, similar to a deer springing from cosmic bushes to look into our collective headlights? Although Crater 2 may appear to have suddenly appeared, he has been around the entire time. We just disregarded it.

However, now that we are aware of its existence, astronomers have uncovered a number of embarrassing characteristics. We cannot ascribe the galaxy’s relative obscurity to its size to begin with. Crater 2 is so enormous that it has already been identified as the fourth biggest galaxy inside the orbit of our galaxy. We also cannot blame its remoteness. Crater 2’s orbit around the Milky Way brings it directly overhead.

Feb 25, 2023

Dark skies: Venus, Jupiter and the Moon pictured across Wales

Posted by in category: space

Stargazers across Wales were able to witness Venus, Jupiter and the Moon aligned in the night sky on Thursday.

Feb 25, 2023

Look! New Webb Telescope Image Shows 300,000 Stars in Incredible Detail

Posted by in category: space

M92 is a globular cluster full of stars.

Feb 25, 2023

James Webb Space Telescope images shatter understanding of age of the universe

Posted by in category: space

The James Webb Space Telescope found six massive galaxies that some scientists never thought could exist. The telescope is so powerful it might have just shattered scientific understanding of the universe. Theoretical Physicist and best selling author Dr. Michio Kaku talked to Gadi Schwartz about the groundbreaking report.

Feb 25, 2023

NASA Issues Award for Greener, More Fuel-Efficient Airliner of Future

Posted by in categories: space, sustainability

NASA announced Wednesday it has issued an award to The Boeing Company for the agency’s Sustainable Flight Demonstrator project, which seeks to inform a potential new generation of green single-aisle airliners.

Under a Funded Space Act Agreement, Boeing will work with NASA to build, test, and fly a full-scale demonstrator aircraft and validate technologies aimed at lowering emissions.

Over seven years, NASA will invest $425 million, while the company and its partners will contribute the remainder of the agreement funding, estimated at about $725 million. As part of the agreement, the agency also will contribute technical expertise and facilities.

Feb 24, 2023

Fragment of 1,000-pound meteor that exploded over Texas could reveal new insights about our solar system

Posted by in category: space

A chunk from the fireball meteor that exploded on Feb. 15 has been recovered. Other fragments of the hefty space rock were likely showered across the nearby area.

Feb 24, 2023

Physicists give the first law of thermodynamics a makeover

Posted by in categories: energy, physics, space

West Virginia University physicists have made a breakthrough on an age-old limitation of the first law of thermodynamics.

Paul Cassak, professor and associate director of the Center for KINETIC Plasma Physics, and graduate research assistant Hasan Barbhuiya, both in the Department of Physics and Astronomy, are studying how energy gets converted in superheated plasmas in .

Their findings, published in Physical Review Letters, will revamp scientists’ understanding of how plasmas in space and laboratories get heated up, and may have a wide variety of further applications across and other sciences.

Feb 24, 2023

How Star Collisions Forge the Universe’s Heaviest Elements

Posted by in categories: computing, mobile phones, space

Bits of the stars are all around us, and in us, too. About half of the abundance of elements heavier than iron originates in some of the most violent explosions in the cosmos. As the universe churns and new stars and planets form out of old gas and dust, these elements eventually make their way to Earth and other worlds. After 3.7 billion years of evolution on our planet, humans and many other species have come to rely on them in our bodies and our lives. Iodine, for instance, is a component of hormones we need to control our brain development and regulate our metabolism. Ocean microplankton called Acantharea use the element strontium to create intricate mineral skeletons. Gallium is critical for the chips in our smartphones and our laptop screens. And the mirrors of the JWST are gilded with gold, an element useful for its unreactive nature and ability to reflect infrared light (not to mention its popularity in jewelry).

Scientists have long had a basic idea of how these elements come to be, but for many years the details were hazy and fiercely debated. That changed recently when astronomers observed, for the first time, heavy-element synthesis in action. The process, the evidence suggests, went something like this.

Continue reading “How Star Collisions Forge the Universe’s Heaviest Elements” »

Feb 24, 2023

Webb telescope makes a surprising galactic discovery in the distant universe

Posted by in categories: physics, space

“These objects are way more massive than anyone expected,” said study coauthor Joel Leja, assistant professor of astronomy and astrophysics at Penn State University, in a statement. “We expected only to find tiny, young, baby galaxies at this point in time, but we’ve discovered galaxies as mature as our own in what was previously understood to be the dawn of the universe.”

The telescope observes the universe in infrared light, which is invisible to the human eye, and is capable of detecting the faint light from ancient stars and galaxies. By peering into the distant universe, the observatory can essentially see back in time up to about 13.5 billion years ago. (Scientists have determined the universe is about 13.7 billion years old.)

The operations center for the telescope is in Baltimore City, at the Space Telescope Science Institute on the Johns Hopkins campus.

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