Sharmila Kuthunur

A Russian military satellite with a "history of unusual maneuvering" was spotted as it approached a satellite in geostationary orbit in April 2024.

OSIRIS-APEX emerged unscathed from its first of six close brushes with the sun, thanks to some clever engineering.

The European Space Agency's Solar Orbiter has, for the first time, traced solar wind in space to a specific location on our sun's surface.

The largest camera ever built for astronomy arrived in Chile, where it will be installed atop Rubin Observatory's Simonyi Survey Telescope.

Venus may be as geologically active as Earth, with volcanoes possibly spewing on its surface in the present day.

The James Webb Space Telescope has found three of the universe's earliest galaxies, and they could reveal a lot about galactic dynamics. Here's how.

New algorithms are being developed to automatically monitor satellites and prevent collisions in cislunar space, the realm between Earth and the moon.

NASA's Aqua and Terra satellites have captured the smoke pouring out of hundreds of wildfires blazing across Canada and Mexico since last week.

A surprisingly low amount of methane explains how WASP-107 b grew into the inflated world we see today.

The auroral displays that wowed observers around the world two weekends ago may have been among the strongest such light shows since record-keeping began.

An infant star in a faraway system will likely someday look like our very own sun, and the Hubble Telescope snapped a lovely image of it.

India's second mission to Mars will include a rover, helicopter, sky crane and a supersonic parachute, according to media reports.

New maps of Earth's rivers are documenting our planet before climate change worsens.

The Hubble Space Telescope recently imaged an actively star-forming galaxy named UGC 9684.

A car-sized asteroid flew very close to Earth on Tuesday morning (May 14), just two days after being discovered.

Using tree ring data, scientists have confirmed that summer 2023 was the hottest summer on Earth in the last 2,000 years.

Astronomers find multiple streams of dust spiraling into the heart of the nearby Andromeda galaxy, where a supermassive black hole lurks.

Scientists fighting to save coral reefs amid the climate crisis suggest sending genetic coral material to be preserved on the moon. Is it a good idea?

Two asteroids are expected to make close but safe approaches to Earth this week, and you can watch them live.

A new AI software has helped identify more than 27,000 asteroids in our solar system that had been overlooked in telescope images.

A new Japanese observatory built high in the Chilean Andes mountains promises fresh views of the early universe.

As global warming intensifies droughts, floods and wildfires around the world, scientists in western United States are turning to beavers to help reverse some of the damage.

Take a fresh look at the iconic Dumbbell Nebula on occasion of the Hubble Space Telescope's 34 years in space.

Citizen scientists poring over old Hubble Telescope photos discovered a thousand previously unknown asteroids in the main belt between Mars and Jupiter.

India has announced its intent to join the global effort to reduce space debris in low Earth orbit.