First Image from the World’s Largest Digital Camera Unveils Galaxy Collisions and Cosmic Wonders

Images and videos from the Vera C. Rubin Observatory showcase over 10 hours of test observations before being revealed. The event was live streamed on Monday from Washington, DC.

Keith Bector, an associate professor from the University of Wisconsin-Madison physics department, has contributed to the Rubin Observatory for nearly a decade as a system verification scientist, ensuring that all components of the observation deck function properly.

He mentioned that the team was present as images streamed in real-time from the camera.

“In the control room, there was a moment when all engineers and scientists gazed at these images. We were able to observe more details about stars and galaxies,” Vector explained to NBC News. “Understanding this on an intellectual level is one thing, but on an emotional level, I realized I was part of something truly extraordinary, all happening in real-time.”

One of the newly released images enabled the Rubin Observatory to identify galaxies billions of light-years away, alongside asteroids in the solar system and stars in the Milky Way.

“In fact, most of the objects captured in these images exhibit light that was emitted before our solar system was formed,” highlighted Bechtol. “We are witnessing light that reflects billions of years of the universe’s history, and many of these galaxies have never before been observed.”

Astronomers are eagerly awaiting the first images from the new observatory, affirming that experts will aid in unraveling some of the universe’s greatest mysteries and revolutionizing our understanding.

“We are entering the golden age of American science,” stated Harriet Kang, acting director of the Energy Department of Science. She elaborated in a statement.

“We anticipate that the observation deck will provide profound insights into our past, future, and potentially the fate of the universe,” Kang remarked during a Monday event.

The Vera C. Rubin Observatory is collaboratively managed by the Energy Agency and the National Science Foundation.

Named after an American astronomer renowned for uncovering evidence of dark matter in space, the observatory is situated atop Cerro Pachon, a mountain in central Chile. It is designed to capture around 1,000 images of the southern hemisphere sky each night, covering the entire visible southern sky every three to four nights.

These early images stem from a series of test observations and mark the commencement of a bold decade-long mission to scan the sky continuously, capturing all visible details and changes.

“The entire observatory design is centered on this capability, enabling you to point, shoot, and repeat,” Bechtol noted. “Every 40 seconds, the view shifts to a new part of the sky. Imagine bringing the night sky back to life in a way we’ve never experienced before.”

By repeating this process nightly over the next decade, scientists aim to create extensive images of the visible southern sky, tracking bright stars, moving asteroids in the solar system, measuring supernova explosions, and observing other cosmic phenomena.

“Utilizing this groundbreaking scientific facility, we will delve into many mysteries of the universe, including the dark matter and dark energy that fills our cosmos,” stated Brian Stone, Chief of Staff of the National Science Foundation, in a statement.

Source: www.nbcnews.com

Discover the hidden wonders of nature with a UV torch in your Country Diary | Plants

Credit for my newfound fascination with Ultraviolet (UV) light goes to fellow diarist Kate Blincoe. She recently expressed her excitement over the UV torch I gifted her, and now she sees the world in a whole new light.

UV light is a high-energy, short-wave light that is typically invisible to the naked eye but can be harmful to many organisms. Life on Earth thrived underwater during the late Proterozoic Era until the formation of the protective ozone layer 15 km to 30 km above us.

When a UV torch is pointed at a plant or animal at night, it triggers molecular interactions that result in the emission of lower-energy light within the visible spectrum. This fluorescence transforms ordinary parts of our environment into vibrant psychedelic scenes. For instance, a sandstone wall can appear as a red sheet (algae) intermingled with glowing lime (lichen).


Spiky sphagnum moss under UV light (left) and normal light. Photo: Mark Cocker

Photography capturing UV-induced transformations requires a comparison of before and after images to illustrate the remarkable changes. One such marvel is the metamorphosis of the golden saxifrage, which turns a lightwood embankment into a sparkling meadow of white and green, evolving into a pool of crimson confetti under the UV torch.

One of my favorite sights is the moss on an old quarry surface adorned with prickly foliage. By day, they present a lush bed of greenery, with central florets encircled by drooping side buds like oversized vegetative spiders. However, under UV light, these plants transform into a vibrant ensemble of lavender, aquamarine, turquoise, purple, and pink hues.

Upon receiving these UV-altered images, a friend questioned their significance, akin to how Henry David Thoreau pondered the beauty of a rainbow in December 1855. Thoreau believed that the world’s splendor far surpassed what meets the eye and that every raindrop had the potential to manifest as a rainbow. He asserted that beauty and music were not exceptions but integral aspects of life. The UV torch merely offers a fresh perspective on the divine enchantment surrounding us.

Under the Changing Skies: The Best of the Guardian’s Country Diary, 2018-2024 is published by Guardian Faber. Order with a 15% discount from guardianbookshop.com

Source: www.theguardian.com