अंतरिक्ष विज्ञान – Page 10 – आवारा मुसाफिर

New space telescope shows Jupiter’s auroras, tiny moons

August 22, 2022339 Views

The world’s newest and biggest space telescope is showing Jupiter as never before, auroras and all. Scientists released the shots Monday of the solar system’s biggest planet. The James Webb Space Telescope took the photos in July, capturing unprecedented views of Jupiter’s northern and southern lights, and swirling polar haze. Jupiter’s Great Red Spot, a storm big enough to swallow Earth, stands out brightly alongside countless smaller storms. One wide-field picture is particularly dramatic, showing the faint rings around the planet, as well as two tiny moons against a glittering background of galaxies. This image provided by NASA shows a false color composite image of Jupiter obtained by the James Webb Space Telescope on July 27, 2022. The planet’s rings and some of its small...

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Galaxies merger produces a spectacular cosmic dance

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August 17, 2022406 Views

ESO telescope captures an event that started around a billion years ago ESO’s Very Large Telescope (VLT) has imaged the result of a spectacular cosmic collision — the galaxy NGC 7727. This giant was born from the merger of two galaxies, an event that started around a billion years ago. At its centre lies the closest pair of supermassive black holes ever found, two objects that are destined to coalesce into an even more massive black hole. Just as you may bump into someone on a busy street, galaxies too can bump into each other. But while galactic interactions are much more violent than a bump on a busy street, individual stars don’t generally collide since, compared to their sizes, the distances between them are very large. Rather, the galaxies dance around each other, with gravity ...

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Scientists find an exotic black hole deemed a ‘needle in a haystack’

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July 19, 2022246 Views

Astronomers have spotted in a galaxy adjacent to our Milky Way what they are calling a cosmic "needle in a haystack" - a black hole that not only is classified as dormant but appears to have been born without the explosion of a dying star. Researchers said on Monday this one differs from all other known black holes in that it is "X-ray quiet" - not emitting powerful X-ray radiation indicative of gobbling up nearby material with its strong gravitational pull - and that it was not born in a stellar blast called a supernova. This artist’s impression shows what the binary system VFTS 243 might look like if we were observing it up close. The system, which is located in the Tarantula Nebula in the Large Magellanic Cloud, is composed of a hot, blue star with 25 times the Sun’s mass and a b...

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Baby stars, dancing galaxies: A new range of cosmic views

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July 13, 2022278 Views

A sparkling landscape of baby stars. A foamy blue and orange view of a dying star. Five galaxies in a cosmic dance. The splendors of the universe glowed in a new batch of images released Tuesday from NASA’s powerful new telescope. The unveiling from the James Webb Space Telescope began Monday at the White House with a sneak peek of the first shot — a jumble of distant galaxies that went deeper into the cosmos than humanity has ever seen. Two full-color images from NASA's James Webb Space Telescope, a revolutionary apparatus designed to peer through the cosmos to the dawn of the universe, show composites made from images at Mid-Infrared (L) & Near-Infrared (R) and released July 12, 2022. NASA, ESA, CSA, STScI, Webb ERO Production Team/Handout via REUTERS Then on Tuesday, NASA ...

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James Webb Space Telescope takes us further back deep into time

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July 12, 2022528 Views

US President Biden unveils telescope's first full-color image of distant galaxies Our view of the universe just expanded: The first image from NASA’s new space telescope unveiled Monday is brimming with galaxies and offers the deepest look of the cosmos ever captured. The first image from the $10 billion James Webb Space Telescope is the farthest humanity has ever seen in both time and distance, closer to the dawn of time and the edge of the universe. That image will be followed Tuesday by the release of four more galactic beauty shots from the telescope’s initial outward gazes. The first full-color image from NASA's James Webb Space Telescope, a revolutionary apparatus designed to peer through the cosmos to the dawn of the universe, shows the galaxy cluster SMACS 0723, known as ...

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NASA to showcase Webb space telescope’s first full-color images

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July 11, 2022535 Views

Drawing back the curtain to a photo gallery unlike any other, NASA will soon present the first full-color images from its James Webb Space Telescope, a revolutionary apparatus designed to peer through the cosmos to the dawn of the universe. The highly anticipated unveiling this week of pictures and spectroscopic data from the newly operational observatory follows a six-month process of remotely unfurling various components, aligning its mirrors and calibrating instruments. Arianespace's Ariane 5 rocket, with NASA?s James Webb Space Telescope onboard, is seen at the launch pad at Europe?s Spaceport, the Guiana Space Center in Kourou, French Guiana December 23, 2021. NASA/Bill Ingalls/Handout via REUTERS With Webb now finely tuned and fully focused, astronomers will embark on a com...

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The futuristic South Pole telescope looks far back in time

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July 6, 2022298 Views

Surveying the cosmos from its isolated position in Antarctica, a collaborative project aims to reveal insights about the universe’s beginnings. In summer at the South Pole, which lasts from November through February, the average temperature is a biting minus 18 degrees F. The sun does not set during this time, making sleep a challenge. The environment is harsh and dry. And the Internet connection at the Amundsen–Scott South Pole Station, when you can access it, is painfully slow. On the other hand, distractions from work are few, and the landscape is stunning. The meals from the onsite kitchen are great. The best part? There’s an unparalleled view of the early universe. The South Pole Telescope is located at the Amundsen–Scott South Pole Station, Antarctica. The station features ...

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Meet the ‘zombie star’ that survived a supernova blast

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June 29, 2022190 Views

Astronomers have observed in a relatively nearby galaxy a star that not only survived what ordinarily should have been certain death - a stellar explosion called a supernova - but emerged from it brighter than before the blast. Meet the "zombie star." The star at issue, observed with the Hubble Space Telescope, is a kind known as a white dwarf, an incredibly dense object with about the mass of the sun crammed into the size of Earth. A white dwarf is the remaining core of a star that blew off a lot of its material at the end of its life cycle, as our sun is expected to do about 5 billion years from now. A 2005 image of the spiral galaxy NGC 1309, the location of a star explosion – a supernova - that did not result in stellar death. NASA, ESA, The Hubble Heritage Team (STSCI/AURA),...

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NASA: Give us back our moon dust and cockroaches

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June 25, 2022183 Views

NASA wants its moon dust and cockroaches back. The space agency has asked Boston-based RR Auction to halt the sale of moon dust collected during the 1969 Apollo 11 mission that had subsequently been fed to cockroaches during an experiment to determine if the lunar rock contained any sort of pathogen that posed a threat to terrestrial life. The material, a NASA lawyer said in a letter to the auctioneer, still belongs to the federal government. The material from the experiment, including a vial with about 40 milligrams of moon dust and three cockroach carcasses, was expected to sell for at least $400,000, but has been pulled from the auction block, RR said Thursday. This April 2022 handout photograph provided by RR Auction shows moon dust from the 1969 Apollo 11 mission, which w...

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In Tarantula Nebula, a stunning view of stars being born

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June 16, 2022350 Views

Astronomers have unveiled intricate details of the star-forming region 30 Doradus, also known as the Tarantula Nebula, using new observations from the Atacama Large Millimeter/submillimeter Array (ALMA). In a high-resolution image released by the European Southern Observatory (ESO) and including ALMA data, we see the nebula in a new light, with wispy gas clouds that provide insight into how massive stars shape this region. Astronomers have peered into a teeming stellar nursery in the Tarantula Nebula - a colossal cloud of gas and dust next door to our galaxy - gaining new understanding of the dynamics of star formation while obtaining a dazzling image of the cosmos. Researchers on Wednesday said their observations offered insight into the interplay between the irresistible force of ...