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Scientists have developed a blood-based test that could be used to predict the risk of Alzheimer’s disease up to 3.5 years before clinical diagnosis. Image for Representation.

New blood test can detect Alzheimer's 3.5 years before diagnosis

That humans originated in Africa is widely accepted. But it’s not generally recognised how unique features of Africa’s ecology were responsible for the crucial evolutionary transitions from forest-inhabiting fruit-eater to savanna-dwelling hunter. Image for Representation.

Large mammals shaped the evolution of humans: Here's why it happened in Africa

Image for representational purpose only.

Poor literacy linked to worse mental health problems: Study

The biggest increases in induntation will occur after the first two metres of sea level rise, covering more than twice as much land as older elevation models predicted, according to a study. Image for Representation.

Worst impacts of sea level rise will hit earlier than thought: Study

This diagram made available by NASA shows the estimated trajectory of asteroid 2023 BU, in red, affected by the earth’s gravity, the orbit of geosynchronous satellites, in green, and the orbit of the moon, in light gray. NASA revealed that this newly discovered asteroid, about the size of a truck, zoomed above the southern tip of South America Thursday evening. Scientists say there is no risk of an impact. Even if it came a lot closer, scientists say it would burn up in the atmosphere, with only a few small pieces reaching the surface.

Phew! Truck-sized asteroid misses Earth

An aerial photo of the Fukushima Daiichi nuclear power plant in Okuma, Fukushima prefecture, March 17, 2022.

Explained | Japan’s decision to flush Fukushima wastewater into the ocean

Vasudevan Mukunth

Visible Line Emission Coronagraph, the primary payload on board Aditya-L1, was handed over to ISRO by the Indian Institute of Astrophysics in Bengaluru on January 26, 2023.

India’s first mission to study the Sun will be launched by June-July: ISRO chairman?

The Hindu Bureau

Elephant Seals interact on a beach in San Simeon, California. File

?Sci-Five | The Hindu Science Quiz: on marine mammals

A.S. Nazir Ahamed

Earth’s inner core, a hot iron ball the size of Pluto, has stopped spinning faster than the planet’s surface and might now be rotating slower than it, research suggested on Monday.

Earth's inner core rotating slower than surface, study suggests

Fossilised femur bone and fossilised eggs of a titanosaur found in Lower Narmada Valley in Dhar District of Madhya Pradesh. The fossils are on display at the India International Science Festival in Bhopal.?

Science for All | Titanosaur eggs discovered in Narmada Valley?

Priyali Prakash

Scientists from the University of Leeds have now unravelled the mystery behind what happens when the chocolate melts in your mouth. (Image for representation)

What makes chocolate so irresistible?

The three minute particles from an asteroid called Itokawa show some of these space rocks are vastly older than was thought, and are much tougher. The three samples were collected in 2005 from the peanut-shaped Itokawa, some 300 million kilometres (186 million miles) from Earth. Image for Representation.

How three dust specks reveal an asteroid's secrets