Scientists have made a significant discovery in astronomy by identifying the black hole closest to our Earth, which is located close to us in space. This amazing discovery has presented new opportunities to study these mysterious substances and understand their influence on the structure of the universe.

  Discovery of black hole BH1:

   Astronomers using the European Space Agency's Gaia satellite have discovered a black hole called BH1. The black hole was found to be only 1,000 light-years from Earth, which is the closest possible entry to any black hole. The Gaia satellite is designed to precisely measure the motion and location of stars in the Milky Way Galaxy.

  What is a black hole?

  Black holes are extremely dense matter that result from the collapse of massive stars under their own gravity. They are so dense that their gravity is strong enough to trap anything that gets close enough, including light. This makes them invisible to telescopes, which can only see the effect of their gravity on nearby matter.

   Why this discovery is so important is?

   The discovery of BH1 is important because it allows scientists to study a black hole up close and in great detail. By observing the effects of its gravity on nearby stars and gas, astronomers can learn more about the quality and behavior of holes. This allows us to gain more knowledge of how they are generated, developed and related to the surrounding environment .

   In addition to BH1, the Gaia satellite has discovered another black hole, known as Gaia BH2, located 15,000 light-years from Earth. These two black holes have the most isolated orbits of all known black holes, where BH1 orbits a companion star once every 6.7 days, while BH2 completes a single orbit approximately once every 6.7 days. 7.6 single orbit.

   The discovery of BH1 and Gaia BH2 is just the start of an exciting new era of black hole research. With the help of advanced telescopes and satellites, astronomers are set to unravel the mysteries of these mysterious objects and gain new perspectives on the workings of the universe.

   What is a black hole?

   Black holes are extremely dense matter that result from the collapse of massive stars under their own gravity. They are so dense that their gravity is strong enough to trap anything that gets close enough, including light.

  Stunning pictures of Earth from space by ISRO

  ISRO releases images of Earth captured by Oceansat-3 india space research organization (ISRO) in its earth observation satellite

  (EOS-06), also known as Oceansat-3, has unveiled stunning pictures of Earth. The satellite captured images using the Ocean Color Monitor (OCM), which were taken between February 1 to 15, 2023. These interesting images were created by merging 2,939 images and processing 300 GB of data was used to generate a mosaic with a special resolution (1 km). Due to the difference in wavelength, different colors are visible on different continents.

  Global Vegetation and Ocean B iota Data from OCM - 3

   ISRO has confirmed that these images contain the Earth's global vegetation cover and marine fauna information. OCM 13 has the ability to sensitize the Earth in different fluidity, making it a powerful tool for oceanography and atmosphere research. Oceansat-3 is a nanosatellite that is part of a larger satellite constellation, to be launched by ISRO in November 2022.

   Advanced device from equip nanosatellite Oceansat-3

  Oceansat-3 carries three primary instruments: Ocean Color Monitor (OCM-3), Sea Surface Temperature Monitor (SSTM) and Ku- band Scatterometer (SCAT-3), while ARGOS

   9:07 49 0.88 VO KB/SL TED

XO 52 4 from Space by ISRO....urrentaffairs.adda247.com

   Oceansat-3 carries three primary instruments: the Ocean Color Monitor (OCM-3), the Sea Surface Temperature Monitor (SSTM) and the Ku- band Scatterometer (SCAT-3), while it also carries the ARGOS system. The satellite can use chlorophyll and SST, wind speed and land based applications to identify potential fishing areas.

   Internet users surprised by images of Earth, go viral on social media

   The images have met with widespread surprise and praise from Internet users, who have flooded social media with comments about Earth's stunning beauty. Some have even expressed pride in their country. The images have gone viral, with many users

  Describing them as "mind-blowing" and a "feast for the eyes".

Shortly after the release of the images, NASA came across a tweet that shared an old image showing human settlements on the night side of Earth.

  Important for all competitive exam's fact:

ISRO Chairman: S. Somnath;

ISRO Foundation Day: August 15, 1969; Founder of ISRO: Dr. Vikram Sarabhai.