New results from Dawn spacecraft fuel debate on whether the dwarf planet is a habitable oasis between Mars and Jupiter
Juno, NASA’s new mission to Jupiter, reaches the giant planet on July 4, 2016. Among its many firsts, Juno will peer deeper than ever before beneath the Jovian clouds and will deliver the first interplanetary LEGO kit...
A next-generation space telescope is in the works—but if it is to see potentially habitable planets, it will need to block out their suns
The Milky Way’s home supercluster of galaxies is far bigger than previously known
More than a third of humanity cannot see the Milky Way due to light pollution, and a new wave of energy-efficient lighting could make the problem much worse
The successful technology demonstration paves the way for detecting mergers of supermassive black holes with future space-based observatories
The wealthy technologist claims some of the world’s top experts on Earth-threatening asteroids are guilty of bad science
Evidence indicates that waves as tall as skyscrapers and thousands of kilometers wide once washed over the Red Planet.
The Kepler mission’s announcement of 1,284 worlds previews the overwhelming number of planetary discoveries to come
A “starshade” flying alongside the WFIRST observatory could deliver images of potentially habitable worlds decades ahead of schedule
Witness the glimmering heart of NASA’s largest-ever space telescope
Funded by Russian entrepreneur Yuri Milner and with the blessing of Stephen Hawking, Breakthrough Starshot aims to send probes to Alpha Centauri in a generation
We could use laser light to mask our transits across the sun and thus hide Earth from any intelligent aliens looking for planets to invade
The super-Earth 55 Cancri e may have a magma ocean or windblown clouds of vaporized rock
NASA’s New Horizons mission has delivered a treasure trove of data from the dwarf planet
The co-founder of SpaceIL, a contender for the Google Lunar XPRIZE, discusses his plans to reach the moon
NASA’s most prolific interplanetary mission reaches a new milestone in Martian exploration
Inside the first meeting of the committee to colonize the Red Planet
Astronomers have discovered a repeating source for an enigmatic cosmic phenomenon
“Fast radio bursts” detected here on Earth last only a thousandth of a second, but are the result of a faraway source briefly shining a billion or more times brighter than our sun...