A collision between the Milky Way and neighboring galaxy Andromeda is far from a sure thing; in fact, it could hinge on the flip of a cosmic coin.
A new study debates the complex ethical questions that must be considered if we're to terraform Mars and lays the blueprint for a potential path forward.
NASA's X-ray space telescope IXPE has made the first observation of polarized light emerging from an outbursting magnetar, neutron stars that possess the universe's strongest magnetic fields.
The James Webb Space Telescope has done it again, discovering the "mother of all early galaxies," a record-breaking distant object that existed just 280 billion years after the Big Bang.
A newly found object could be a dwarf planet that contradicts the Planet Nine hypothesis.
Astronomers have spotted a supermassive black hole ripping apart and devouring a star in colliding galaxies. It is only the second time a tidal disruption event has been seen in interacting galaxies.
A supernova remnant (SNR) discovered by astrophysicist Miroslav Filipović of Western Sydney University displays an astonishingly spherical shape.
Using a newly developed adaptive optics system called Cona, scientists peered through Earth's turbulent air to reveal the sun's corona in astonishing clarity.
A number of groups and individuals say there's a need to protect lunar history before it's too late.
The mystery surrounding a strange cosmic object, or 'long-period transient,' has deepened. This object is bursting with X-rays, and astronomers describe it as unlike anything seen before.
