The further away scientists look, the further back in time they see. Astronomers use this method to study the evolution of the Universe by analyzing nearby and more distant galaxies and comparing their features.
Building a base on the moon could theoretically be made much simpler by using a 3D printer to construct it from local materials.
We can all be picky at times, but you probably think of this planet as reasonably bearable. In a new model for what constitutes a habitable zone, however, the Earth barely scrapes over the bar.
NASA's ability to track satellites and orbiting spacecraft is about to get a big boost, following the launch last night of a next-generation communication satellite.
Astronomers using the European Space Agency's Herschel Space Telescope have spotted a star that appears to be making new planets, despite being well past the age at which it would be expected to do so.
Ridges in impact craters on Mars appear to be the fossilized remnants of underground cracks through which water once flowed.
Iran's successfully given a live monkey a round trip into space, the country's Al-Alam television channel reports.
This past week, NASA resurrected the stalwart F-1 engine that powered the Saturn V rocket, test firing its gas generator at the Marshall Space Flight Center in Huntsville, Ala.
Globular clusters are approximate spherical collections of old stars, with around 150 of them scattered around our Milky Way galaxy.
An international team of researchers studying data beamed back by NASA's Mars Reconnaissance Orbiter have observed seasonal changes on far-northern sand dunes on the Red Planet caused by warming of a winter blanket of frozen carbon dioxide.
NASA has signed up to join the European Space Agency's (ESA's) Euclid mission, a space telescope due to launch in 2020 and designed to investigate dark matter and dark energy.
Astronomers are baffled by the discovery of a pulsar - a tiny spinning stars, heavier than the sun and smaller than a city - that emits different types of radiation at different times.
In some dramatic images, astronomers have for the first time observed magnetic braids of super-hot matter on the surface of the sun, the first clear evidence of energy transfer from its magnetic field to the solar atmosphere or corona.
In space, dense clouds of cosmic gas and dust are the birthplaces of new stars. In visible light, this dust is often dark and obscuring, concealing the stars behind it.
DARPA has released a video detailing some of the progress it's made with its Phoenix project for repurposing existing satellites.
Astronomers have made the most precise measurement ever of how the universe has cooled down during its 13.77 billion year history - putting the Big Bang theory to the test.
A few years ago, if a company had stepped up and said it planned to send unmanned spacecraft to explore the possibility of mining asteroids in near earth orbit, quite a number of us probably would have politely chuckled.
The European Space Agency's (ESA) Herschel space observatory has identified multiple arcs around Betelgeuse, the nearest red supergiant star to Earth.
University of Leicester planetary scientists believe they've found the first clear evidence that auroras occur outside our solar system.
Astronomers believe they've worked out the source of a mysterious burst of gamma rays that irradiated the Earth in the 8th century.