New independent measurements of universe expansion rate deepen cosmic mystery : Kauai Now
A team of astronomers using a variety of ground and space-based telescopes — including W. M. Keck Observatory…
Cosmic blast looked like a kilonova, then turned into a superkilonova mystery
Caltech astronomer Mansi Kasliwal and her colleagues were not expecting to chase a mystery that blurred the line…
NASA’s Mars Reconnaissance Orbiter captured its 100,000th image of Mars
An illustration showing the planet Mars and its atmosphere. (Image source: Aynur_zakirov – Pixabay) NASA’s Mars Reconnaissance Orbiter…
How to Watch the Final Meteor Shower of 2025
The Lyrids’ radiant, the constellation Hercules, rises well before midnight, so meteors are visible all night, but are…
Astronomers discover spacetime drag around a supermassive black hole — as predicted by Einstein
A star’s fatal brush with a supermassive black hole can light up a quiet galaxy. When gravity shreds…
Interstellar comet keeps its distance as it makes its closest approach to Earth
CAPE CANAVERAL, Fla. — A stray comet from another star swings past Earth this week in one last…
Astronomers spot closest giant planet orbiting binary stars ever observed
Astronomers have confirmed a giant planet orbiting a tightly bound pair of young stars, marking a first in…
How Do Astronomers Find Planets in Other Solar Systems?
It was almost 100 years ago that Clyde W. Tombaugh discovered Pluto. That was the last planet found…
New images reveal an early-stage stellar eruption (nova) in stunning detail
A classical nova may look simple at first. A faint star brightens, sometimes enough for you to spot…
Desert Fireball Network students find fist-sized meteorite in outback WA
Students from Curtin University’s Desert Fireball Network have found a fist-sized meteorite in a remote part of Western…
New gravitational lens measurements reveal a faster expansion rate for the universe
For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned…
Photographers Around the World Capture Astonishing Auroras During the Solar Maximum — Colossal
From Iceland’s Arctic Henge to snowy forests, the vistas represented in the 2025 Northern Lights Photographer of the…