The mysterious interstellar visitor in our Solar System has shifted in a way that has never been seen among comets before.

NASA's Voyager 2 spacecraft captured dark streaks produced by geysers visible on the icy surface of Triton's south polar ...

A pair of Sydney Ph.D. students helped sharpen the view of humanity's most powerful space observatory—without leaving Earth.

It was put on Webb to diagnose and measure any blur in its images. Even nanometres of distortion in Webb’s 18 hexagonal ...

Two students have engineered a fix to improve the imaging from the James Webb Space Telescope interferometer. They did this ...

Hubble Space Telescope can "only see the universe in shades of grey," according to NASA's Goddard Space Flight Center. Learn ...

The Hubble Space Telescope reveals how color filters tease out the life cycles of stars in spiral galaxy NGC 6000 — while a ...

A new collage from the James Webb Space Telescope reveals eight dazzling examples of gravitational lensing.

3I/ATLAS is named for its status as one of three interstellar objects ever discovered in our cosmic neighborhood, as well as ...

The James Webb Space Telescope has uncovered a massive red supergiant star just before it exploded, finally solving a cosmic ...

Anyone who studies planetary formation would relish the opportunity to get a close-up look at an interstellar object. Sending ...

According to theory, massive red supergiant stars should cause most supernovae, yet they are rarely observed. New James Webb ...