A new study has suggested that extraterrestrials could hitch a ride across the cosmos on rogue extrasolar worlds.
Known as 'trioxides', these highly reactive chemicals could be contributing to health and environmental problems.
These giant 'scratches' on the surface of the Red Planet were captured on camera by ESA's Mars Express orbiter.
A theoretical new type of telescope could make it possible to obtain close-up views of extrasolar worlds.
The act of destroying the Moon was put forward as a way to solve many of our planet's problems.
Over the last 30 years, scientists have succeeded in identifying a staggering 5,000 planets in distant solar systems.
The potential existence of an undiscovered planet in our own solar system has intrigued astronomers for years.
A new study has looked into the possibility that our planet is not simply a ball of water, metal and rock.
Scientists have discovered a previously unknown opening situated 62 miles beneath the planet's surface.
Astronomers have identified a new extrasolar planet that is thought to be comprised of more than 80% iron.
A diamond that originated deep beneath the planet's surface has been found to contain a new type of mineral.
Evidence of a planet has been found in a distant galaxy 28 million light years away.
Caves dotted around the surface of the Red Planet could provide a safe haven for future human explorers.
Scientists searching for life-bearing exoplanets have identified a new class of potentially habitable world.
Scientists have identified a mammoth that roamed a distance equivalent to circling the entire planet twice.
NASA's Curiosity rover has discovered that evidence of ancient life on the Red Planet may have been scrubbed.
Many of our planet's most significant geological events have occurred in roughly 27.5-million-year intervals.
For the first time in over 30 years, the space agency will be venturing back to the second planet from the Sun.
A planetary defense exercise at the weekend ended up 'destroying' an area of Europe around 100km wide.
NASA's Insight lander has recently picked up the telltale signs of seismic activity on the Red Planet.