The groundbreaking solar probe has sent back its first observations from the edge of the Sun's atmosphere.
Astronomers have determined that comet 2I/Borisov could be carrying water from a distant solar system.
NASA engineer David Burns has developed a concept for a new drive capable of reaching distant solar systems.
Astronomers have revealed that comet 2I/Borisov is remarkably similar to comets from our own solar system.
The undiscovered theoretical planet in the outer reaches of our solar system may actually be a black hole.
An amateur astronomer has discovered what is believed to be a comet that has come from a distant solar system.
Water vapor has been identified on what is being hailed as the most habitable exoplanet found to date.
Astrophysicists have discovered a way to detect the surviving cores of planets orbiting white dwarf stars.
Astronomers have announced the discovery of a large, potentially habitable world in a nearby solar system.
The experimental project could one day make it possible for solar sails to propel spacecraft to other worlds.
NASA has released a breathtaking photograph showing the space station silhouetted against our solar neighbor.
The new worlds are so much like our own that both are now on a list of the 19 planets most likely to support life.
Scientists now believe that our Sun is capable of producing a type of powerful and disruptive 'superflare'.
According to a new study, many planets in the so-called habitable zone can only support single-celled organisms.
119-year-old footage of a total solar eclipse over the Southeastern United States has been posted online.
Scientists have discovered a grain of dust left over from a stellar explosion that predated our solar system.
Scientists have identified a potential new way to detect the presence of extraterrestrial life on distant worlds.
Scientists at JPL have been working to simulate the atmospheric conditions found on 'hot Jupiter' planets.
In a new study, scientists have worked out that, on average, Mercury is actually closer to us than Venus.
The discoverer of the most distant known object in our solar system has now found an even more distant one.