A new study suggests that gravity becomes about 1% weaker at very large scales. If gravity behaved according to Einstein's theory, then this 1% difference shouldn't exist.
Six of the planets of the Solar System are about to line up for a rare sight in Earth's sky.
Dubbed Gliese 12 b, the planet takes 12.8 days to orbit a star that is 27% of the sun's size. The planet is about the size of Venus, so slightly smaller than Earth, and may be temperate enough to support life, the researchers said.
Another amazing image has been released that shows the triple-star system HP Tau, HP Tau G2, and HP Tau G3. HP Tau is so young that it hasn't started to fuse hydrogen yet and is only 10 million years old!
An international team of astronomers have used the NASA/ESA/CSA James Webb Space Telescope to find evidence for an ongoing merger of two galaxies and their massive black holes when the Universe was only 740 million years old.
A solar storm that filled Earth's skies with shimmering curtains of light in May 2024 was so intense that its effects were felt, even at the bottom of the ocean.
Astrophysicists discovered that an exoplanet is covered with so many active volcanoes that seen from a distance it would take on a fiery, glowing-red hue.
A recent study has discovered a novel method for detecting the first-generations stars, known as Population III (Pop III) stars, which have never been directly detected.
Most stars in the Milky Way just hang around doing pretty normal star things, but one particular star just will not.
Nasa says its Perseverance rover has essentially completed the job it was asked to do when it landed on Mars in February 2021.
One group of scientists thinks that we may already have detected technosignatures from a technological civilization's Dyson spheres, but the detection is hidden in our vast troves of astronomical data.
Could AI be the universe's "great filter" – a threshold so hard to overcome that it prevents most life from evolving into space-faring civilizations?
An international team of researchers has produced the first sharp radio maps of the universe at low frequencies. Thanks to a new calibration technique, they bypassed the disturbances of the Earth's ionosphere.
On the scale of cataclysmic events, the whomping impact of a Mars-sized object that crashed into Earth some 4.5 billion years ago ranks pretty highly: thought to have set in motion the movement of our planet's fractured, rocky crust.
For the first time, astronomers say that they have detected a possible atmosphere on a rocky exoplanet. This smaller rocky world, 55 Cancri e, is only 41 light-years from Earth. But unlike our planet it is extremely hot.
