For the first time ever, scientists have detected helium in the atmosphere of a planet in orbit around a distant star.
In recent years, the magnetic field that surrounds and protects our planet has been gradually weakening.
Hydrogen sulfide, which gives rotten eggs their smell, has been discovered in the seventh planet's atmosphere.
On planets more massive than the Earth, launching things in to space will be a lot more challenging.
Known as EarthNow, the project aims to offer live streaming of the entire planet 24 hours a day.
Could there have been an advanced civilization on our planet long before mankind appeared on the scene ?
An asteroid the size of a warehouse passed our planet at the weekend just hours after it was first spotted.
The Transiting Exoplanet Survey Satellite (TESS) is due to lift off aboard a Falcon 9 rocket on Monday.
Warnings of another end of the world scenario involving the planet Nibiru have been doing the rounds this week.
Space tourism startup Orion Span is offering guests the opportunity to spend 12 days orbiting the planet.
NASA's flagship rover has now been trundling across the surface of the Red Planet for more than five years.
One astronomer was left red-faced this week after he mistook the planet Mars for an undiscovered star.
A renewed hunt for Earth-like worlds has yielded a haul of 95 previously undiscovered extrasolar planets.
Scientists have used microlensing to discover planets in a galaxy over 3.8 billion light years away.
The dinosaurs' total domination of our planet may have played a major role in their eventual demise.
It is looking increasingly likely that the Trappist-1 system's seven worlds could be home to alien life.
The next generation telescope will enable us to directly study the atmospheres of extrasolar planets.
A US-based exploration firm is set to begin hunting for the whereabouts of the missing plane's wreckage.
The disconcertingly-shaped space rock was last seen hurtling past our planet back in October 2015.
Stratolaunch's new aircraft is so enormous that its wingspan could contain an entire football field.