ACTIVE GALACTIC NUCLEI
In 2025, Rubin's 3.2-billion-pixel camera in Chile began watching the universe. 1 year later, it can trigger 7 million alerts a night in 40 seconds
Every forty seconds, the Vera Rubin Observatory captures fresh images of the sky, thanks to its state-of-the-art camera and data processing capabilities that yield millions of alerts each night. Launched on June 30, 2026, this ten-year survey underscores the importance of repeated observations in unveiling changes and breakthroughs. By continuously tracking the southern sky, it showcases the dynamic universe unfolding before our eyes.
In 1969, Apollo 11 astronauts saw mysterious flashes with their eyes closed. Scientists later found the cause
During the Apollo missions, astronauts noted peculiar flashes of light occurring inside their spacecraft. These experiences were later attributed to energetic cosmic rays penetrating their vision. NASA played a pivotal role in investigating these occurrences, establishing a firm link between the light flashes and cosmic radiation. This foundational work is vital for preparing future astronauts against the hazards of long-duration space exploration.
NASA looked back at the first Black Hole ever photographed, and found a big surprise
The universe keeps reshaping our cosmic perspective. When the Event Horizon Telescope captured the historic first image of a black hole in 2019, humanity stared at a fiery orange ring. That glowing donut of hot gas became an instant scientific monument. However, static pictures rarely tell the whole story of deep space. New Chandra X-ray observations reveal moving jet activity inside the heart of the galaxy Messier 87, proving this monster is far from quiet.
ISRO invites proposals from Indian researchers to study XPoSat Mission data
Launched on January 1, 2024, the XPoSat, or X-ray Polarimeter Satellite, currently orbits Earth in a near-equatorial orbit at an altitude of 650 kilometres.
Intergalactic predators? James Webb data hints supermassive black holes may act like cosmic killers, preventing star birth in distant galaxies
New research reveals that active supermassive black holes can suppress star formation in neighboring galaxies across vast intergalactic distances, extending their influence far beyond their host galaxies. This "galactic ecosystem" effect, observed through James Webb Space Telescope data, suggests a more interconnected evolution of galaxies in the early universe.
Isro’s XPoSat to lift off today to study X-rays' sources
The satellite will seek to understand the sources of x-rays and study blackholes. The satellite is set for launch on board the Polar Satellite Launch Vehicle from Sriharikota, and is only the second mission of its kind in the world after NASA's 2021 mission named Imaging X-ray Polarimetry Explorer.
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ISRO to usher in 2024 with launch of dedicated scientific satellite to study black holes
The launch comes after the success of its Gaganyaan Test Vehicle D1 mission in October. The PSLV-C58 rocket, in its 60th mission, would carry primary payload XPoSat and 10 other satellites to be deployed in low earth orbits.
Mysterious cosmic ray in US' Utah came from Milky Way, claim scientists
Scientists have identified the powerful cosmic ray that had struck the atmosphere above Utah on May 27, 2021. The particle was observed by Telescope Array and was nicknamed Amaterasu, after the sun goddess in Japanese mythology.
Scientists find new hiding places for black holes
New York, June 6 (IANS) An international team of astronomers has observed that enormous quantities of space dust in galaxies could play an important role in hiding the black holes they harbour at their centres.
Chinese space telescope to observe 'big eaters'
Beijing, May 29 (IANS) China's new space telescope will probe many mysteries of the universe, including the belching "big eaters" -- active galactic nuclei at the most remote edges of the universe.
'Monster' blackholes hiding in cosmic backyard spotted
Both of the black holes are the central engines of what astronomers call "active galactic nuclei," a class of extremely bright objects that includes quasars and blazars.
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