Solar System

3I/ATLAS is the third-known interstellar object to enter our solar system. It was discovered on 1 July 2025 by the ATLAS telescope in Chile, travelling at over 210,000 kilometres per hour.

Alleged NASA leak of 3I/ATLAS image and Japanese ‘breathtaking view’ create online frenzy

Scientists believe 3I/ATLAS contains significant amounts of carbon dioxide, similar to comets formed in cold, distant star systems.

3i/atlas: What today’s ‘Manhattan-size’ interstellar visitor really means

A quick explainer on how close it gets, who can see it, and why scientists care.

3I/ATLAS sending Fibonacci Signal 8 • 13 • 8 • 5 • 13 • 8 with mysterious message ‘The Gate Awaits,’ new claims suggest

3I/ATLAS made its closest approach to Earth on 29 October 2025, coming within 1.8 astronomical units, or around 167 million miles.

Astronomers discover second-fastest asteroid orbiting the Sun

Astronomers have detected a skyscraper-sized asteroid hidden near the Sun, racing around our star extremely fast and raising planetary defence concerns.

700-metre ‘twilight’ asteroid found inside Venus’s orbit, circles Sun in just 128 days

The asteroid is estimated to measure about 700 meters in diameter. Its orbit crosses Mercury’s path, and it remains largely hidden from Earth’s view in the Sun’s glare.

Solar tornadoes could trigger hidden geomagnetic storms

New models show interplanetary solar tornadoes may trigger geomagnetic storms capable of disrupting satellites, electricity networks and global communications.

Astronomers reveal evidence for a hidden 'Planet Y' beyond Neptune

Planet Y has not been directly observed, but its influence is apparent. Researchers studied roughly 50 icy objects beyond Neptune and found unexpected orbital inclinations.

Interstellar Comet 3I/ATLAS zips past Sun, to be monitored by Mars and Jupiter spacecraft

The European Space Agency is using Mars and Jupiter missions to monitor the comet in real time. Observing from beyond Earth allows instruments to track the comet even when Earth-based telescopes lose sight.

Comet 3I/ATLAS may be alien probe as it is larger than expected, says Harvard scientists

The object, named 3I/ATLAS, was first spotted by NASA on 1 July 2025. It is only the third confirmed interstellar visitor after ‘Oumuamua in 2017 and 2I/Borisov in 2019. Classified as a comet, 3I/ATLAS has unusual motion that has drawn global scientific attention.

NASA shares Saturn’s rings shifting as equinox marks seasonal change

Saturn’s rings orbit along the planet’s equator. Their appearance depends on the tilt of Saturn’s spin axis toward the Sun.

Signs of flowing water found in near-Earth asteroid Ryugu that changed its core, scientists say

Researchers studied samples returned by Japan’s Hayabusa2 mission in 2020. The spacecraft visited the near-Earth asteroid between 2018 and 2019.

Interstellar Comet 3I/ATLAS unleashes bright green glow in stunning new images

Interstellar Comet 3I/ATLAS undergoes a striking green transformation, captivating scientists and astronomy enthusiasts alike with its unprecedented color change.

Is there another hidden world beyond Neptune? Astronomers suspect planet Y

Planet Nine was previously suggested as a possible explanation for distant orbital clustering. It was thought to be ten times Earth’s mass, orbiting far beyond Neptune.

NASA’s Psyche spacecraft captures Earth and Moon from 180 million miles

Psyche’s twin cameras recorded long-exposure images of Earth and the Moon. From 180 million miles away, both appeared as faint dots.

Our Solar System lies inside a mysterious protective bubble and scientists have mapped its edge

ur Solar System is wrapped in such a shield, a bubble created by the Sun. Known as the heliosphere, it extends billions of kilometres into space and protects life on Earth.

NASA-ISRO successfully launch NISAR: The world's most expensive satellite lifts off from Sriharikota

NISAR marks the first joint Earth-observing satellite developed by India and the United States. The observatory will monitor a wide range of changes, including ground shifts caused by earthquakes, landslides, and volcanic activity.

Astronomers capture a glimpse into the birth of a new solar system for the first time

The James Webb Space Telescope spotted signs of solid minerals. These are known as silicon monoxide, beginning to cool and harden.

Hubble captures first image of 7-billion-year-old interstellar comet entering our solar system

NASA's Hubble Space Telescope has caught the first image of 3I/ATLAS. It is only the third known object from beyond our solar system.

Uranus isn’t as cold as we once imagined, says NASA

Uranus is unlike any other planet in space. It tilts sideways, spinning like a barrel in orbit. Each pole gets 42 years of direct sunlight.

India’s Himalayan Chandra Telescope spots interstellar comet ATLAS from Ladakh – See images here

This is only the third interstellar object ever found. The first was 'Oumuamua in 2017, and the second, Borisov, in 2019.

NASA's Lucy Mission captures first close look at Donaldjohanson Asteroid

On April 20, Lucy zoomed past Donaldjohanson at incredible speed. The spacecraft captured a series of close-up images using its L’LORRI imager just before the flyby.

NASA confirms new interstellar object entering our Solar System; it’s the largest, fastest and only third ever recorded

It currently sits around 420 million miles (or 670 million kilometres) from Earth. Astronomers have since confirmed its foreign origin—it’s only the third known comet to travel from beyond our solar system.

Tiny star hosts giant surprise: Saturn-sized planet found orbiting red dwarf star

The giant planet, named TOI-6894b, was spotted using NASA’s Transiting Exoplanet Survey Satellite, or TESS.

Mystery in the Mist: Pluto’s hazy skies baffle scientists, reveal a truly unique atmosphere

In 2022 and 2023, researchers turned JWST's powerful MIRI instrument toward Pluto. What they found was unlike anything seen elsewhere in the Solar System.