The youngest known pulsar, born in a supernova blast just 240 years ago, also is a powerful magnetar, shedding new light on an enigmatic class of stellar powerhouses.
A new study, using Earth as a model, suggests alien civilizations should exist, but they would be few and very far between, making detection and communication extremely difficult.
The Curiosity Mars rover looks up from the martian surface to capture images of Earth and Venus in a bright twilight sky, showing humanity’s home as a tiny speck of light.
Astronomers have come up with another value for the Hubble constant, more evidence that the standard model of the cosmos and its expansion need revision
Researchers find evidence for an intriguing exoplanet in archived Kepler data, a “mirror-image” Earth-like world in the habitable zone of a Sun-like star.
Astronomers find no signs of first-generation population III stars in gravitationally lensed galaxies dating back to within 500 million years of the Big Bang.