Pic of the Week: Surface of the Sun

Posted on by onespaceman2000
Image (Credit): Image of the Sun’s surface captured by the Inouye Solar Telescope.(NSF/NSO/AURA/MPS)

This week’s image is from the U.S. National Science Foundation’s (NSF) National Solar Observatory (NSO). It shows the highest resolution image ever captured of the Sun’s surface. The image was captured by the Inouye Solar Telescope located in Maui, Hawaii.

Here is more from the NSF about this image:

Using the world’s most powerful solar telescope, the NSF Daniel K. Inouye Solar Telescope near the summit of Maui’s Haleakalā, combined with computer simulations, an international team of scientists from the NSO, NSF NCAR High Altitude Observatory (HAO), and the Max Planck Institute for Solar System Research (MPS) found the signature of Kelvin-Helmholtz instability (KHI), tiny swirling patterns like small whirlpools, on the Sun’s surface. Researchers suggest that KHI might be a key reason why the Sun’s outer atmosphere gets so hot, and why magnetic energy builds up and moves around on the Sun. Magnetic energy fuels solar flares and eruptions—the kind of solar activity that can send bursts of energy toward Earth and affect satellites, power grids, and other technology. The discovery opens a new window into the fundamental physics of the Sun and other stars while underscoring the unmatched capabilities of the Inouye Solar Telescope.

Space Quote: AI is Ready to Run a Telescope

Posted on by onespaceman2000
Credit: Image by Alexandra_Koch from Pixabay

“It is exciting to see ideas from AI and reinforcement learning brought to telescope scheduling, where every decision must balance changing conditions and scarce observing time…Developing intelligent scheduling systems for astronomical surveys also raises fascinating new machine learning problems, and we are excited to continue exploring them through this project.”

-Statement by Northwestern University’s Aravindan Vijayaraghavan, who co-led the AI telescope project with Drlica-Wagner, as quoted by NOIRLab. The AI program planned and managed observations on a national facility for the first time. It is hoped that the involvement of AI could add efficiencies to the process, thereby allowing astronomers to have more time for their science.

Space Stories: English Observatory Closing, an Early Warning System for Astronomers, and Accessing Europa’s Ocean

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Image (Credit): The Jodrell Bank Observatory in Cheshire, England. (Jodrell Bank)

Here are some recent space-related stories of interest.

—The Guardian: “Jodrell Bank Observatory Facing Closure After Major Funder Cuts Support“

Jodrell Bank Observatory, the hub of a world-leading network of radio telescopes, is facing closure after government funding for the facility was slashed. Scientists say decision is blow to UK astronomy as deep space observatory is home to world-leading facilities. The deep space observatory includes the Grade I-listed Lovell telescope and is prized by astronomers who study galaxies, black holes, star formation, planets beyond the solar system and the afterglow of the big bang.

—ZME Science: “Astronomers Are Building an ‘Artificial Retina’ to Protect Telescope Images From Satellites“

A telescope can spend hours collecting the faint light of a distant galaxy. A fast-moving satellite needs only a few seconds to cross its field of view, leaving a bright streak that contaminates (and sometimes ruins) the long exposure. As the number of satellites around Earth grows, astronomers increasingly need ways to predict and avoid these crossings. Researchers at the University of Warwick are now developing an early-warning system that could spot an approaching satellite and alert a telescope before it enters the image.

—Rutgers: “Why Europa’s Hidden Ocean May Be More Difficult to Reach Than Scientists Thought“

Europa, one of Jupiter’s icy moons, long has fascinated scientists because of what may lie beneath its frozen shell: a global ocean of liquid water. That hidden ocean has made Europa one of the most compelling places in the solar system to study the conditions that might support life. But new research led by Rutgers scientist Lujendra Ojha suggests one of the most promising shortcuts to Europa’s ocean may be far more complicated than previously thought.

Note: Here is the podcast version of this post.

Space Stories: Swift Recovery, Saudi Space Sight-seeing Plans, and Ukrainian Reprisals in Russia

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Image (Credit): Artist rendering of the Neil Gehrels Swift Observatory in orbit with parts of spacecraft highlighted. (NASA’s Goddard Space Flight Center Conceptual Image Lab)

Here are some recent space-related stories.

—Science Alert: “Heads Up: NASA to Launch ‘Daring’ Telescope Rescue Mission This Week“

NASA will soon attempt something it’s never done before: Save a space telescope from falling back to Earth using a servicing robot. It sounds like something right out of a sci-fi film, but NASA is hoping it might be enough to keep its sinking Neil Gehrels Swift Observatory in action a little longer. According to the US space agency, the mission could launch as soon as this Tuesday 30 June, 6:17 am EDT (10:17 UTC), and we’ll be keeping you updated on the progress. If this mission works, the much-beloved Hubble Space Telescope is one of the next targets to have its life extended.

—The National News: “Stellar Places to Watch the Night Sky Across the Arab World“

Saudi Arabia has announced plans for AlUla Manara, a major astronomical observatory and research centre in the kingdom’s north-west…AlUla Manara is planned to include large telescopes, observation platforms, exhibitions, interactive experiences, a planetarium, a restaurant and a visitor and research centre. The project is intended to support scientific research as well as public astronomy experiences. No opening date has been announced.

—MSN: “Ukraine Strikes Russian Space Hub as Nuclear Orbit Fears Grow“

Ukraine’s General Staff confirmed its forces struck the Vladimir Space Communications Center near Gus-Khrustalny on 22 June, destroying the main 25‑metre parabolic antenna, damaging satellite modem halls, multiplexers, and cooling systems. Additional damage to the Main Hardware and Software Complex and a key technical building severely degraded Russia’s satellite operations…The Vladimir facility plays a central role in Russia’s satellite communications, and its loss comes amid accusations that Moscow has manoeuvred satellites near European systems used by Ukraine, causing GPS disruption across Europe, Greenland, and Canada.

Note: Here is the podcast version of this post.

Space Stories: New Lunar Lander on Display, Caltech Approves a Radio Telescope, and Missing Galactic Dark Matter

Posted on by onespaceman2000
Image (Credit): Astrobotic Technology’s Griffin-1 lunar lander. (Astrobotic Technology)

Here are some recent space-related stories.

—Satnews: “Pittsburgh’s Moonshot: Astrobotic Unveils Griffin-1 Lander Ahead of Historic NASA ‘Moon Base II’ Mission“

Emerging as a powerful symbol of regional industrial pride and the rapid privatization of deep-space logistics, Astrobotic Technology has officially unveiled its massive Griffin-1 lunar lander. The vehicle, which has been formally designated by NASA as the primary infrastructure vehicle for the Moon Base II task order under the Commercial Lunar Payload Services (CLPS) program, represents a critical stepping stone toward establishing a permanent, self-sustaining human presence on the lunar surface. Unlike smaller, first-generation commercial scouts, the Griffin platform is an “infrastructure-class” logistics vehicle engineered to transport heavy industrial cargo. Boasting a massive 625 to 650-kilogram payload capacity, the stout aluminum isogrid lander is designed to ferry bulky machinery, scientific sensor arrays, and alternative energy installations directly to the rugged, hazardous terrain of the lunar south pole.

—Newser: “Giant Nevada Project Could Transform Astronomy“

Caltech has approved the final design for the Deep Synoptic Array, a $200 million radio telescope project that will blanket a chunk of desert with 1,650 dishes over roughly 120 square miles—an array designed to scan the sky about 100 times faster than any existing telescope. Backed in part by Schmidt Sciences, the philanthropic effort of former Google CEO Eric Schmidt and his wife Wendy, the project is slated to be finished by 2029 and will be powered by a supercomputer that turns torrents of radio signals into sharp images on the fly.

—W.M. Keck Observatory: “Astronomers Discover Third Galaxy Without Dark Matter“

Astronomers using W. M. Keck Observatory on Maunakea, Hawaiʻi Island, have discovered the third known galaxy apparently lacking dark matter, part of a strange linear structure that may have formed during a violent collision between galaxies. The discovery strengthens evidence for a rare and previously unseen process in which ordinary matter becomes separated from dark matter, offering astronomers a powerful new way to study one of the universe’s greatest mysteries.

Note: Here is the podcast version of this post.