Tag: NASA

NISAR satellite sends first radar images of Earth’s surface

Posted on By admin
NISAR satellite sends first radar images of Earth’s surface

Captured on August 21, this image from NISAR’s L-band radar shows Maine’s Mount Desert Island. Green indicates forest, while magenta represents hard or regular surfaces, such as bare ground and buildings. The magenta area on the island’s northeast end is the town of Bar Harbor. Photo: Special Arrangement The NASA-ISRO Synthetic Aperture Radar (NISAR) Earth-observing…

Read More “NISAR satellite sends first radar images of Earth’s surface” »

Science

Science retracts NASA arsenic bacteria paper after years of controversy

Posted on By admin
Science retracts NASA arsenic bacteria paper after years of controversy

In 2010, in the waters of Mono Lake in California, NASA-funded scientists claimed to have found a microbe called GFAJ-1 they said rewrote biology. It had allegedly replaced the phosphorus in its DNA with the toxic element arsenic. The announcement, made at a high-profile press conference on December 2 that year, stunned the world. The…

Read More “Science retracts NASA arsenic bacteria paper after years of controversy” »

Science

Why Mumbai Is Being Linked To 'City Killer' Asteroid: All You Need To Know

Posted on By admin
Why Mumbai Is Being Linked To 'City Killer' Asteroid: All You Need To Know

Asteroid 2024 YR4 is being keenly watched by astronomers since its discovery in December last year. Dubbed “city killer”, the space rock now has an estimated 1.5 per cent (or 1 in 67) chance of striking our planet during a close flyby on December 22, 2032. Since the chance of the asteroid hitting our planet…

Read More “Why Mumbai Is Being Linked To 'City Killer' Asteroid: All You Need To Know” »

Nation

Moon Or Mars? NASA’s Future At A Crossroads Under Trump 2.0

Posted on By admin
Moon Or Mars? NASA’s Future At A Crossroads Under Trump 2.0

Washington: Is NASA still Moonbound, or will the next giant leap mean skipping straight to Mars? Speculation is mounting that the Trump administration may scale back or cancel NASA’s Artemis missions following the departure of a key official and Boeing’s plans to lay off hundreds of employees working on its lunar rocket. Late Wednesday, NASA…

Read More “Moon Or Mars? NASA’s Future At A Crossroads Under Trump 2.0” »

World

Telescope Captures “City-Killer” Asteroid, NASA Tracking Potential Threat

Posted on By admin
Telescope Captures “City-Killer” Asteroid, NASA Tracking Potential Threat

A newly discovered asteroid has climbed to the top of NASA’s impact risk list after fresh observations doubled its chances of striking Earth in 2032. Recent images captured by the Gemini South Telescope in Chile provide a detailed look at YR4 2024, which measures between 131 and 295 feet wide – roughly the size of…

Read More “Telescope Captures “City-Killer” Asteroid, NASA Tracking Potential Threat” »

World

This Asteroid Could Hit Earth In 2032, Threatening To Wipe Out A City

Posted on By admin
This Asteroid Could Hit Earth In 2032, Threatening To Wipe Out A City

NASA scientists have found an asteroid named 2024 YR4, which might collide with Earth in 2032, posing a 1-in-83 chance of impact. The asteroid, measuring around 130 to 300 feet across, is too small to threaten the extinction of humankind, but experts warn that it could cause massive destruction if it hits a major city….

Read More “This Asteroid Could Hit Earth In 2032, Threatening To Wipe Out A City” »

World

Stranded Astronauts Sunita Williams, Butch Wilmore Take First Spacewalk After 8 Months

Posted on By admin
Stranded Astronauts Sunita Williams, Butch Wilmore Take First Spacewalk After 8 Months

After being stranded in space for eight months, NASA astronauts Sunita Williams and Butch Wilmore finally embarked on their first joint spacewalk outside the International Space Station. Indian-origin astronaut and Commander Sunita Williams, along with fellow astronaut Barry Wilmore, ventured outside the International Space Station on Thursday to carry out maintenance work. As part of…

Read More “Stranded Astronauts Sunita Williams, Butch Wilmore Take First Spacewalk After 8 Months” »

World

Astronomers Discover How Massive Black Holes Create Their Own Meals

Posted on By admin
Astronomers Discover How Massive Black Holes Create Their Own Meals

The universe’s most massive black holes fuel themselves by cooling gas around them, astronomers have found. Using data from NASA’s Chandra X-ray Observatory and the Very Large Telescope (VLT) in Chile, researchers have demonstrated how black hole outbursts trigger a self-sustaining feeding process. The study, published in Nature Astronomy and led by Valeria Olivares from…

Read More “Astronomers Discover How Massive Black Holes Create Their Own Meals” »

World

NASA’s James Webb Space Telescope Shows 3D Structure Of Dust And Gas Between Stars

Posted on By admin
NASA’s James Webb Space Telescope Shows 3D Structure Of Dust And Gas Between Stars

NASA’s James Webb Space Telescope has captured highly detailed images showing the complex layers of interstellar dust and gas. These observations, collected through light echoes from a supernova explosion, “are allowing astronomers to map the true 3D structure of this interstellar dust and gas (known as the interstellar medium) for the first time,” stated NASA…

Read More “NASA’s James Webb Space Telescope Shows 3D Structure Of Dust And Gas Between Stars” »

World