Sandeep Thakur’s Post

NASA's GRACE satellite has generated a geoid map of the earth based on the magnitude and shape of the globe and shows us an interesting image. In the picture, we can see several warped dots and various color shades, which represent the magnitude of gravity at that specific point. From what we see, the distribution of matter on earth is not perfectly uniform and therefore neither is gravity. According to this distribution, the lesser-serious area would be near the Indian Ocean, while in the central part of Europe and the north of the Atlantic Ocean there is the highest index of gravity.

A rare comet—C/2023 A3 (Tsuchinshan-ATLAS)—has made an appearance after 80,000 years. It was first discovered last year, heading towards the inner solar system (its first documented orbit). According to NASA, the comet will be closer to Earth on October 12 but should be visible until the end of the month. However, astronomers have predicted that it will reach maximum brightness on October 9 and around 13 and would be most visible to the naked eye. The latest observed magnitude of the comet is -4.9, which would make it one of the brightest comets visible in the Northern Hemisphere in the last 100 years. And the brightest comet of all comets in the last 13 years. Keep watching to get a glimpse of the rare comet. Photos: @astrofalls @dubaiastronomy and Matthew Dominic/NASA

Is this a three body problem? Not quite, just a triple-star system! These stars are all T Tauri stars, they tend to be younger than 10 million years old, much younger than our 4.6 billion-year-old Sun. They’re often found still swaddled in the clouds of dust and gas from which they formed. This image was captured by NASA's Hubble Space Telescope. Learn more: https://lnkd.in/eQT2bfQK

𝐍𝐀𝐒𝐀 𝐬𝐩𝐚𝐜𝐞 𝐭𝐞𝐥𝐞𝐬𝐜𝐨𝐩𝐞𝐬 𝐠𝐢𝐯𝐞 𝐂𝐡𝐫𝐢𝐬𝐭𝐦𝐚𝐬 𝐓𝐫𝐞𝐞 𝐂𝐥𝐮𝐬𝐭𝐞𝐫 𝐚 𝐟𝐞𝐬𝐭𝐢𝐯𝐞 𝐦𝐚𝐤𝐞𝐨𝐯𝐞𝐫🎄💫 We've all looked for shapes in Earth's clouds. But what about shapes in space clouds? If you glance at NGC 2264, you'll see very quickly why this cluster of stars is nicknamed the "Christmas Tree Cluster." This cluster has become the recent subject of astrophotographer Michael Clow, who imaged it from Arizona in November. His optical data have been combined with X-ray data from NASA's Chandra X-Ray Observatory to create this beautiful Christmas tree-like image of NGC 2264, showcasing not only the stars themselves, but also the gas clouds between them. NGC 2264 is located within the Milky Way, just 2,500 light-years from Earth. And the stars within it are very, very young — just one to five million years old. By comparison, our middle-aged sun is about 5 billion years old. https://lnkd.in/gVeNkU8V

Voyager 1 is back online and responding with useful data! Just think about it - NASA people expected Voyager probes will work for about 5 years. And yet they are still going on, for the last 46 years. Sadly, estimates are Voyager 1 has maybe one year of plutonium battery left, but still, the design proved itself, especially considering the technology existing 50 years ago. And once it finally turns off, will keep on going and going through the expanse of space long after all of us are gone, as an evidence we existed and were able to touch the universe. https://lnkd.in/dpMqTfmU

What's going on with Cassiopeia A? How did this star tear itself apart? What does it tell us about how the elements for life in the universe came to be? Learn more about this dynamic dead star, the target for this season of NASA's #AstrophotoChallenge: https://lnkd.in/eh3s4pY2

The concept of shooting stars, or meteors, is mentioned in the Quran in the context of divine protection and the guarding of the heavens. The relevant verses are found in Surah Al-Hijr (Chapter 15) and Surah As-Saffat (Chapter 37). Here are the specific references: Surah Al-Hijr (15:16-18): Verse 16: "And We have placed within the heaven great stars and have beautified it for the observers." Verse 17: "And We have protected it from every devil expelled [from the mercy of Allah]" Verse 18: "Except one who steals a hearing and is pursued by a clear burning flame." Surah As-Saffat (37:6-10): Verse 6: "Indeed, We have adorned the nearest heaven with an adornment of stars." Verse 7: "And as protection against every rebellious devil." Verse 8: "[So] they may not listen to the exalted assembly [of angels] and are pelted from every side," Verse 9: "Repelled; and for them is a constant punishment," Verse 10: "Except one who snatches [some words] by theft, but they are pursued by a burning flame, piercing [in brightness]." These verses highlight the belief that stars (or meteors) are used by Allah to guard the heavens from devils who try to eavesdrop on the divine decree. When they attempt to do so, they are chased away by meteors. This imagery serves to emphasize the power and protection of the divine realm.

#readersclub In 1990, as the Voyager 1 probe prepared to leave our solar system forever, Carl Sagan, the brilliant American astronomer and thinker, made an unusual and daring suggestion. He proposed that NASA turn the probe around and take one final picture of Earth—a farewell snapshot of our home before the probe disappeared into the infinite void. At first, the idea didn’t sit well with many. It was considered a waste of precious time and fuel, resources that were critical for the mission. Why bother photographing something we already knew so well? But despite the skepticism, they went ahead with it. And from 4 billion miles away, the Voyager 1 captured something that would forever change how we see ourselves: a faint image of Earth, no larger than a pale blue dot, suspended in a scattered ray of sunlight. A tiny, almost insignificant speck floating in the vastness of the cosmos. .. read further in my blog.. mentioned below .. https://lnkd.in/gxZ8G8Pe

Meteor shower to peak today: Here's when and the best way to watch, Credit: Pixabay/CC0 Public Domain One of the oldest known meteor showers is streaking through the sky above California. The Lyrid meteor shower was first recorded in 687 B.C. and has been studied for more than 2,000 years, according to NASA. The meteor shower occurs every April, peaking this year on April 22. Question: What is a meteor? Answer: Meteors are essentially debris in the sky. They come from leftover comets and broken asteroids,

😍Here's the Earth spelling out Your Names!! This tool from NASA - National Aeronautics and Space Administration let's you visualize your names written on Earth's Magnificent lanscapes. These are the Landsat Images. The Landsat series of satellites has been observing Earth for over 50 years, collecting breathtaking imagery and invaluable data used to study our planet’s changing surface. With a new online interactive, users can type in their name, then view and export the graphic of that name spelled out in Earth features found in Landsat images. https://lnkd.in/dhPMF48e #NASA #Landsat #RemoteSensing #Geospatial #DataVisualization #GIS #Satellite