Interstellar objects are really rather rare. Since astronomers first spotted 'Oumuamua racing through our Solar System in 2017, we've detected only two more visitors from beyond; comet Borisov in 2019, and now 3I/ATLAS, discovered on 1 July 2025. These objects offer tantalising glimpses into other stellar systems, carrying material formed around distant stars. But they don't linger. They sweep through on hyperbolic trajectories, never to return, which makes every observation precious.
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James Webb Space Telescope spots rapidly feeding supermassive black hole in the infant universe: 'This discovery is truly remarkable.'
"This challenges our understanding of black hole and galaxy formation in the early universe."
Some Exoplanets Can Create Their Own Water Through Crust-Atmosphere Reactions
Without water, life is highly unlikely, as far as scientists understand it. The entire idea of a habitable zone around other stars is based on a planet's potential to have liquid water on its surface. But where does this water come from?
Jeff Bezos' Blue Origin will build a 'super heavy' version of its powerful New Glenn rocket
Blue Origin plans to build an even more powerful version of its partially reusable New Glenn rocket, which aced its second-ever launch just last week.
Earth and Theia smashed to birth the moon, but did they first start out as close neighbors?
"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system. Earth and Theia are likely to have been neighbors."
Updates on Interstellar Comet 3I/ATLAS: NASA Images, Many Tails, and Non-gravitational Forces
Now that Comet 3I/ATLAS has emerged from the Sun's glare, its behavior is being monitored by every available observatory.
AI helps build the most detailed Milky Way simulation ever, mapping 100 billion stars
A record-breaking number of stars has been mapped by a new model that speeds up processing time while allowing smaller scale events, such as supernova explosions, to be incorporated into the simulation alongside larger-scale galactic processes.
A Star Blew A "Diamond Ring" Bubble In Space
The Cygnus X star-forming region is about 4,600 light-years away. It contains a huge number of massive protostars, and one of the most massive star-forming molecular clouds known. With all of this activity, it's not surprising that it also hosts some objects that have puzzled astronomers.
Spot Uranus shining at its brightest this year — here's what to expect on Nov. 21
Uranus will appear opposite the sun in Earth's sky on Nov. 21.
Nikon Monarch M7 8x42 binocular review
These Nikon Monarch M7 8x42 binoculars are great for any stargazer looking for a budget-friendly investment.
Watch SpaceX launch more than 100 satellites to orbit today on Transporter 15 rideshare mission
SpaceX will launch more than 100 different payloads today (Nov. 20) on the Transporter 15 rideshare mission.
Rubin Observatory peers into the 'hidden universe' and discovers stream of stars longer than our entire Milky Way
"The discovery of this stream highlights how much is still unknown about the life histories of galaxies, how the hidden universe shapes the realms that we can see."
ESA awards excellent suppliers
The European Space Agency (ESA) brings public and ESA-wide recognition of the outstanding performance of European companies working in the frame of ESA programmes and projects.
Smile approved for launch in spring 2026
Smile has passed its qualification and flight acceptance review, meaning that it meets all requirements for launch. The launch window has been set for 8 April to 7 May 2026.
ISS astronauts see comet Lemmon 'absorbed' by aurora | Space photo of the day for Nov. 20, 2025
It's not every day you see both a comet and an aurora from low Earth orbit.
Experience instant stargazing with one of the most versatile smart telescopes this Black Friday, with $1149 off
Waste no time with the Unistellar Odyssey Pro — a lightweight, portable smart telescope that features in our best smart telescopes guide.
Astronomers Spot "First Stars" Billions of Years After They Were Supposed to Die
Over the course of billions of years, the universe has steadily been evolving. Thanks to the expansion of the universe, we are able to “see” back in time to watch that evolution, almost from the beginning. But every once in a while we see something that doesn’t fit into our current understanding of how the universe should operate. That’s the case for a galaxy described in a new paper by PhD student Sijia Cai of Tsinghua University’s Department of Astronomy and their colleagues. They found a galaxy formed around 11 billion years ago that appears to be “metal-free”, indicating that it might contain a set of elusive first generation (Pop III) stars.
Amazon says 'indeed' to a new 'Stargate' show for Prime Video
Chevron 7 is locked, as Amazon greenlights a new 'Stargate' show for Prime Video led by longtime franchise figure Martin Gero.
James Webb Space Telescope captures 'one-of-a-kind' triple star system that looks like a cosmic embryo (image)
The unique system features two rare Wolf-Rayet stars, and a supergiant companion that is interrupting the flow of the dust shells that the two Wolf-Rayet stars cast off.
ESA’s Argonaut press conference
Video: 01:00:00
The press conference, at the European Astronaut Centre in Cologne, Germany, follows the signing of contracts between Thales Alenia Space Italy, UK and France, OHB system AG (Germany) and Nammo (UK) for the ESA’s lunar lander programme Argonaut.
Stream Pluribus and other great sci-fi content as Apple TV is over 50% off for 6 months in one of the best Black Friday Streaming deals available
One of the best Black Friday streaming deals has landed as Apple TV is over 50% off for six months, so you can stream Pluribus, Severance and more, for less.
