Long-term space experiments on animals can help assess the feasibility of interplanetary travel.
Using cast-off military spy telescopes may improve the search for dark energy, but it won't necessarily be cheap.
Astronomers probing a distant galaxy have found a few tentative traces of a prebiotic molecule called hydroxylamine that could potentially seed life on other planets
Lights from nearby cities and towns are obscuring the night skies for even remote telescopes, but simple measures can reduce the impact.
Kitt Peak Observatory and the Very Large Baseline Array could see big cuts in funding from the National Science Foundation.
A beautiful image of Cassiopeia-A taken with a new X-ray space telescope reveals the explosive death of a star in unprecedented detail.
Researchers want to fly a spaceship into a small asteroid called Didymos to see if its path is deflected.
New, hidden laws of nature may govern both the growth of brain or social networks and the expansion of the universe
The newly discovered Earth-size planet is alluring, but San Franciscans are wary about interstellar travel.