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Searched Tag: earth

ISRO-NASA's NISAR Earth observation satellite during final integration before launch from Sriharikota on July 30.

ISRO-NASA joint satellite 'NISAR' to monitor Earth from July 30

July 27, 2025, 09:17 PM - 5 min read

India and the United States are set to launch NISAR, their first joint Earth observation satellite, marking a leap in tracking climate, seismic shifts, and ecosystems.

It’s scientists versus satellites, as black holes look on

June 30, 2025, 02:23 PM - 5 min read

The satellites the world relies on for navigation, communication and more get their bearings from distant black holes – but radio noise is blurring the picture.

Where is the centre of the universe?

June 11, 2025, 03:05 PM - 7 min read

Scientists realised Einstein’s theory didn’t actually say the universe had to be static; the theory could support an expanding universe as well. Indeed, by using the same mathematical tools provided by Einstein’s theory, scientists created new models that showed the universe was, in fact, dynamic and evolving.

The Eurasian and North American tectonic plates in Thingvellir National Park, Iceland.

Chemical secrets of Earth’s crust revealed

April 3, 2025, 03:40 PM - 6 min read

This discovery has major implications for how we think about Earth’s earliest history. It means the distinctive chemical fingerprint of the continental crust was always there – and only recycled at island arcs ever since.

Giant ice bulldozers: How glaciers helped life evolve

February 26, 2025, 01:04 PM - 7 min read

According to the Snowball Earth hypothesis, Earth underwent at least two extreme global glaciations during the Cryogenian. Traces of these events can be seen across the globe in sedimentary rocks formed under glacial conditions, strongly suggesting that ice spread from the poles to reach the equatorial region.

Earth’s stability relies on net-zero emissions

December 8, 2024, 03:40 PM - 7 min read

But Earth is hurtling towards a climate catastrophe, with more than 3°C of warming under current global policies. We must do everything we can to avert disaster, which means slashing emissions as much as we possibly can, and removing what’s left.

NASA alerts of 500-foot asteroid approaching Earth on Oct 28

October 27, 2024, 04:29 PM - 2 min read

Scientists see this as an opportunity to study the ancient celestial object, a cosmic relic that may reveal clues about our solar system’s origins.

The inner core of the Earth, a solid ball with a radius of about 1,220 km, is now rotating in the opposite direction compared to nearly a century ago, scientists have discovered.

Earth's core rotation reverses after decades

July 9, 2024, 12:44 PM - 2 min read

In 2023, some scientists suggested that the inner core, which once spun faster than Earth, had begun to spin slower. Initially, it was believed that the core's rotation matched Earth’s spin, but it later decelerated and started moving backward relative to the fluid layers around it.