Sci &Tech

NASA’s Hubble Space Telescope reobserved interstellar comet 3I/ATLAS Nov. 30, with its Wide Field Camera 3 instrument Ever since 3I/ATLAS was first spotted in July, it’s been the space object everyone argues about. It’s only the third interstellar visitor ever found passing through our Solar System, it refused to sit neatly in the “just another…

BENGALURU: More than a year after the most disruptive solar event in more than two decades, Indian scientists have pieced together why the May 2024 storm, now known as Gannon’s storm, struck Earth with such force. A new study in the journal Astrophysical Journal Letters draws on observations from India’s Aditya-L1 satellite and six US…

Old airport security used Rapiscan backscatter scanners that showed fully detailed body images/ image:X If you’ve ever shuffled through an airport body scanner wondering how much the machine can actually see, you’re not alone. For a while, the answer was: far more than most travellers realised. And that’s exactly why the technology had to change….

BENGALURU: Fresh analysis of data from the Chandrayaan-3 lander has revealed that the plasma environment near the Moon’s southern high latitudes is far more active than earlier believed. The results, based on measurements collected between Aug 23, 2023 and Sept 3, 2023, mark the first direct observations of near-surface plasma at such low altitudes in…

Black holes capture the imagination of scientists and space enthusiasts because they represent the most extreme gravitational forces in the universe. NASA explains that anything approaching a black hole encounters enormous tidal forces that stretch and distort matter, and that time itself slows dramatically due to gravitational time dilation. According to NASA, if an object…

Menstruation in space is a topic that has long been overlooked, yet it is becoming an essential part of astronaut health research as more women travel beyond Earth and missions grow longer. Spaceflight changes how the human body functions. Microgravity affects circulation, fluid movement, bone density, muscle strength, and immune response. These physiological shifts can…

A powerful rise in solar activity could push the northern lights far beyond their usual northern zones, creating a rare opportunity for skywatchers across the United States. Scientists are monitoring a strong burst of energy from the sun known as a coronal mass ejection, which sends charged particles racing toward Earth. When these particles interact…

Stunning images of mysterious red lights appearing to fall from space have captured global attention, sparking widespread speculation online. Many social media users suggested these ghostly flashes could be linked to alien signals, but scientists and space agencies have confirmed a more down-to-earth explanation. These striking phenomena are known as red sprites, a rare and…

Billions of years ago, Mars was not the arid, desolate planet we know today. Evidence suggests that rainfall once flowed across its surface, carving valleys, filling craters, and forming river networks that may have emptied into a vast ocean. Understanding these ancient waterways is crucial for scientists searching for signs of past life, as water…

Comet 3I/ATLAS reveals glowing coma, plasma and dust tails from ESA’s Juice mission/ Image: European Space Agency Harvard astrophysicist Avi Loeb has made a kind of second career out of being the person in the room who refuses to leave “aliens” off the table. With 3I/ATLAS, only the third confirmed interstellar object ever spotted passing…