About 50 light-years from Earth, a gas giant about half the mass of Jupiter orbits a sunlike star. The discovery of Pegasi 51 b ushered in a new era of exoplanet research.

Soaring to the depths of our universe, gallant spacecraft roam the cosmos, snapping images of celestial wonders. Some spacecraft have instruments capable of capturing radio emissions. When scientists ...

Astronomers have created the most detailed low-frequency map of the Milky Way, revealing otherwise hidden stars and ...

Elon Musk triggered fresh conspiracy chatter after declaring, “I will never commit suicide,” during a discussion on Comet ...

In July 2025 a curious visitor entered our Solar System: the interstellar object dubbed 3I/ATLAS. Unlike typical space rocks that circle the Sun and behave like known comets or asteroids, this one has ...

Brian Lacki has released a set of three prepublication studies attempting to rationalize and measure the odds of a ...

Harvard astronomer Avi Loeb has argued at length that 3I/ATLAS — the third-ever interstellar object ever detected, currently ...

Lacki’s study, “Artificial Broadcasts as Galactic Populations,” has been posted to the preprint science journal arXiv. In it, he argues radio-bright galaxies may be bursting at the seams with advanced ...

The mysterious interstellar object soaring through our Solar System is set to slip behind the sun starting tomorrow. A ...

Harvard astrophysicist Avi Loeb has renewed speculation about the mysterious interstellar object 3I/ATLAS ahead of its ...

Latest updates on the interstellar comet that has been grabbing all the limelight. Everything you need to know about 3I/ATLAS ...

Astronomers are launching a major international effort to study a mysterious visitor from another star system, 3I/ATLAS. This ...