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Page 12 - தேசிய வானொலி வானியல் கண்காணிப்பு News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Gigantic, Near-Perfectly Circular Radio Objects Found in Distant Universe Baffle Scientists

https://sputniknews.com/science/202105161082908660-gigantic-near-perfectly-circular-radio-objects-found-in-distant-universe-baffle-scientists-/ The Australian Square Kilometre Array Pathfinder (ASKAP), a powerful telescope developed and operated by the country’s science agency CSIRO, became fully operational in February 2019 and has been conducting pilot surveys of the sky to map the structure and evolution of the Universe. Recent research may hold the clue to an enigma that has been puzzling astronomers over the past few years. A mysterious handful of huge, almost perfectly circular radio objects, located in a distant universe, are yet to be explained by science. Now, a new one has been spotted and added to the list by a team of scientists, who posted their findings on 27 April to the preprint database arXiv. The research has since been accepted for publication in the Monthly Notices of the Royal Astronomical Society. This discovery may be the first step towards finally findin

WATCH — New image brings black hole into focus | Video

CBC Kids News • Published 2021-05-12 06:00 Scientists hoping for clues about a black hole’s magnetic fields ⭐️HERE’S WHAT YOU NEED TO KNOW⭐️ Scientists have released a new, sharper image of a black hole. The photo improves on a blurrier image from two years ago. The image was created by an international array of radio telescopes. Keep reading to find out what scientists hope to learn from it. ⬇️ ⬇️ ⬇️ It’s been two years since astronomers shared the first image of a black hole and now they’ve revealed a sharper picture. The original photo looked like a glowing doughnut, but it actually revealed the super-dense core of a galaxy.

How Long is a Day on Venus? We Finally Know the Exact Answer -- Science & Technology -- Sott net

© NASA The Goldstone Deep Space Communications Complex, situated in the Mojave Desert in California. As Margot explained, the process is similar to shining a light (the radio dish) on millions of tiny reflectors (the planet s landscape) and measuring the reflections to get a sense of how fast its moving: We use Venus as a giant disco ball. We illuminate it with an extremely powerful flashlight about 100,000 times brighter than your typical flashlight. And if we track the reflections from the disco ball, we can infer properties about the spin [state]. The complex way Venus reflects the radio signals causes them to erratically brighten and dim before they are received back on Earth. The Goldstone antenna intercepts the return signal first, followed by the Green Bank antenna about 20 seconds later. The exact timing of the delay allows scientists to know how quickly Venus is spinning while the particular window of time in which the echoes are most similar allows them to gauge

Why you may see strange bright lights in the San Francisco Bay Area sky tonight

Why you may see strange bright lights in the San Francisco Bay Area sky tonight FacebookTwitterEmail A mysterious string of lights appeared Thursday in the predawn sky over the greater Bay Area. Twitter user @JustTeresa02 captured a photo.Twitter: @JustTeresa02 You may have spotted a mysterious string of lights, lined up in a row and moving like a train, across the nighttime sky Thursday. Elon Musk is responsible for the show in the sky and tonight there will be a repeat performance that s even brighter. Musk s company SpaceX launched the Starlink satellites on May 4 yes, Star Wars Day from Launch Complex 39A (LC-39A) at Kennedy Space Center. The Falcon 9 booster lofted 60 Starlink satellites into the atmosphere. 

Astronomers share a beautiful image of a giant molecular cloud

Astronomers share a beautiful image of a giant molecular cloud Satsuki Then - May 5, 2021, 7:16am CDT Astronomers from the National Radio Astronomy Observatory have shared a beautiful image of a giant molecular cloud called W49A. The giant molecular cloud is a stellar nursery where new stars are formed. Astronomers on the project used the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) to take the high-resolution radio images of the cluster. W49A is 36,000 light-years from Earth, and scientists have been studying the molecular cloud for decades. However, the new radio images reveal some significant changes have occurred since an earlier set of observations made using the VLA were performed in 1994 and 1995. Radio images taken by the VLA shows radio waves in orange layered over infrared images documenting the shape and movement of giant clouds of ionized hydrogen gas.

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