No bigger than 12 miles across, and nearly coal-black in color, a new moon discovered orbiting Neptune is so faint that it evaded detection for the 167 years Neptune has been known, even as spacecraft flew by and discovered several of the planet's other 13 moons in the 1980s.
This year marks the peak of the Sun's 11-year solar weather cycle, and the star appears to be asleep in the job: what usually marks a period of violent outbursts is turning out to be a season so quiet that some are calling it the weakest solar maximum of the last 100 years.
As lunar tourism becomes a thing of increasingly less distant future, members of the Congress are starting to worry about preserving the legacy of Apollo 11- the first human landing on the moon.
From the depths of our solar system, NASA's New Horizons spacecraft snapped a first-of-its-kind photo: a picture of Pluto's largest moon Charon.
A tsunami observed on the Sun has been used to create the first accurate estimates of the star's magnetic field, according to a new study soon to be published in the journal Solar Physics.
Off in not-too-distant outer space, about 63 light-years away, NASA's Hubble Space Telescope has spotted a true blue planet.
Before jetting off for a three month mission trip to the International Space Station, you might consider cutting your long locks. If not, NASA astronaut Karen Nyberg, a crew member on Expedition 36, recently posted a YouTube video explaining how she washes her hair in space without the much needed help of gravity.
Though previously unobserved, scientists long assumed that, just like any other object moving through a medium, the solar system had a tail. Not until NASA's Interstellar Boundary Explorer, or IBEX, however, were scientists able to perceive it and map its boundaries, which, it turns out, resembles something like a four-leaf clover.
Bacteria behave differently in space than on Earth, according to a new NASA-funded study from Rensselaer Polytechnic Institute, Troy, New York.
Astronomers are witnessing the birth of a massive star in the Milky Way, The European Space Agency said. The monster star is taking form in the cosmic womb with over 500 times the mass of the Sun. According to the astronomers, just one in every 10,000 stars in Milky Way reach this kind of mass, making its formation a rare event.
Despite the fact that no one has been to the moon in the past 40 years and the U.S. has no immediate plans to make a return visit anytime soon, two Democratic House members have proposed a bill to establish a national park on the moon.
NASA's 2020 Mars rover should look for signs of past life, collect samples for possible future return to Earth and demonstrate technology for future human exploration of the Red Planet, according to a 154-page report prepared by the Mars 2020 Science Definition Team appointed by NASA in January to outline objectives for the upcoming mission.
Two astronauts aboard the International Space Station began what is planned to be more than a six hour spacewalk at 8:02 EDT on Tuesday in order to prepare the orbiting lab for a new Russian module as well as perform additional installations on the station's back bone.
SpaceX's reusable rocket prototype reached a new height of 1,066 feet (325 meters), or roughly the height of the Chrysler Building in New York City, before returning safely back to its launchpad in its latest trial run.
Antimatter has been detected in solar flares via microwave and magnetic-field data, according to a presentation by researchers at the 44th meeting of the American Astronomical Society's Solar Physics Division.