NASA has released two new images showing interstellar comet Borisov traveling through our solar system.
Astronomers have discovered a huge planet orbiting the burnt-out husk of a star that was once like the Sun.
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.