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The orbital environment has changed dramatically recently. By 2024, more than 14,000 satellites were circling Earth, with megaconstellations accounting for the majority. SpaceX’s Starlink network alone had placed 8,811 satellites in orbit by October 2025. (Image for representation: AI generated)

Earth’s satellite fleet faces rising risk of rapid collision cascades, says study

December 18, 2025 8:51 am

A new “CRASH Clock” shows how quickly satellite systems could unravel if avoidance manoeuvres fail.

How lunar photography brought the heavens down to earth

November 28, 2025 7:00 pm

Two millenniums before blastoff, astronomy belonged as much to the realms of art, philosophy and religion as it did to what we moderns call science.

The findings suggest dust grains can spark sophisticated chemistry even in metal-poor settings. The researchers plan to hunt for these molecules around other protostars in the Milky Way and beyond. (Image for representation: FreePik)

Clues to life’s origins spotted in a galaxy 160,000 light-years from Earth

October 30, 2025 9:01 am

Astronomers have for the first time spotted multiple complex organic molecules—the raw ingredients of life—locked in ice around a star outside the Milky Way.

The image of Jupiter captured by the Hubble Space Telescope shows vivid auroras and the famous Great Red Spot. (Image credit: NASA, ESA, and J. Nichols (University of Leicester))

Jupiter saved Earth from spiralling into the Sun, scientists say

October 28, 2025 9:36 am

New simulations from Rice University reveal how Jupiter’s rapid early growth blocked gas and dust from reaching the Sun, helping the inner planets, including Earth, form and survive.

How Earth’s shifting forces drive quakes, floods and climate extremes

September 16, 2025 3:11 pm

The Earth formed 4.6 billion years ago and has been continuously changing ever since. For instance, the Himalayas continue to rise as the Indian plate moves northward at approximately 5 cm per year. But how do such tectonic movements contribute to seismic risks and other natural disasters?

NISAR is the first Earth satellite jointly developed by ISRO and NASA. (Photo:/Videograb/X@ISRO)

India to launch NASA-ISRO NISAR satellite today: Here’s how to watch it live

July 30, 2025 12:12 pm

NISAR, the first Earth observation satellite developed by ISRO and NASA is scheduled to liftoff at 5:40 PM from the Satish Dhawan Space Centre in Sriharikota, Andhra Pradesh.

A collaboration between NASA and the Indian Space Research Organisation, NISAR will use synthetic aperture radar to monitor nearly all the planet’s land- and ice-covered surfaces twice every 12 days. (Image Credit: NASA/JPL-Caltech)

ISRO-NASA NISAR mission: 5 things to know about the costliest Earth observation satellite

July 25, 2025 10:17 am

Developed by ISRO in collaboration with NASA, NISAR is designed to collect detailed information about Earth's surface and will also give insights into natural disasters.

$Earth recorded its shortest day on July 10, by completing a full rotation faster by a fraction of a second (1.36 milliseconds).$

5th July was the shortest day this year. Why is the Earth spinning faster this month?

July 24, 2025 10:08 am

Until 2020, the shortest day ever recorded was -1.05 ms, which means the Earth completed its rotation in 1.05 milliseconds less than 24 hours.

The geomagnetic storm may make Aurora Borealis visible in parts of the world where it normally isn't. (Image credit: News IADN)

Aurora borealis alert: Rare celestial spectacle to be visible this weekend, when and where to watch

June 15, 2025 9:06 am

A 'moderate' geomagnetic storm may make northern lights, also known as Aurora Borealis visible in as many as 18 states in the northern part of the US.

Venus may also be hiding more city killer asteroids. (Representational Image: OpenAI/DALLE)

City-killer asteroids orbiting near Venus could someday hit Earth without warning, says study

June 09, 2025 9:19 am

These 20 "city killer" asteroids, each over 140 metres in size, could potentially be on a future collision course with Earth.

EARTH PHOTOS

Lunar Eclipse 2021: Glimpses of the astronomical event from around the world

November 20, 2021 10:22 am

The lunar eclipse was the longest of this century and longer than any other eclipse dating back 580 years.

In pictures: Stunning 'pink supermoon' lights up skies across the world

April 29, 2021 2:52 pm

First supermoon of 2021 light up the skies across the world. In its closest approach to Earth, the bigger and brighter supermoon delighted sky-watchers. Check out these stunning images.

EARTH VIDEOS

Seven countries are home to over half the world's population: News in Numbers

June 22, 2020 6:19 pm

About 53% of the world population of the world lives in just seven countries. Take a look in today's News in Numbers.

India, US to launch satellite on climate change in 2021

February 26, 2016 5:27 am

New Delhi, Feb 26 (ANI): India and the United States are collaborating to build a satellite on climate change which will be launched in 2021, said US ambassador to India Richard Verma.Divulging details, Verma said space agencies are developing NASA –ISRO Synthetic Aperture Radar project or NISAR and plan to launch it from India’s impressive geo-synchronised satellite launch vehicle in 2021. Verma added that the satellite will use advance radar imaging to provide an unprecedented detail view of earth.