A group of astronomers are trying to reclassify Pluto as full 'planet'. But there are good reasons to leave our classification system alone, and this doesn't mean Pluto is any less interesting.
Scientists have discovered seven Earth-sized planets packed around a dim star.
Enormous odd feature presents puzzle for scientists.
The moon may be slightly older than previously thought, suggests a new study.
Funding has been agreed for ESA's ExoMars rover, giving new hope that Europe could find life on Mars.
Scientists are excited about sending a microphone to Mars for the very first time.
Many images of planets have been manipulated. So have we seen their true colours? Not always, it turns out. But Jupiter's red spot really is red.
Earth is the only planet in our solar system with both plate tectonics and life. Is there a connection?
A look at some of the more obscure methods astronomers use to detect planets around other stars, in the second of a two-part series on finding world's elsewhere in the universe.
Astronomers have discovered more than 3,000 planets around other stars, so far. In the first of a two-part series we look at how they find world's elsewhere in the universe.
Why Planet Nine should be found in the next few years ... if it exists.
We take our understanding of the solar system for granted, but it took centuries to figure out. The original writings of Ptolemy, Copernicus, Galileo and others show how they sparked a revolution.
A US$100-million plan has been announced to send tiny probes out in space in search of life elsewhere in the universe. But are they looking in the right place?
The search for new objects, including new planets, in our solar system has turned up some interesting finds. There have been a few failures over the years too.
A new planet in our solar system? Let's get direct proof before we start naming it.
Scientists say they have evidence that the solar system has an extra planet, bigger than Earth and way beyond Pluto. So how come we never knew this before?
From the high-speed journey to Jupiter to solar eclipses, meteor showers and planetary alignments visible in the skies above -- add these space highlights to your 2016 calendar.
Recent Martian findings are just the latest discoveries of aurora on other planets, both in and out of our solar system.
Space scientists have a busy decade ahead with plans to visit Jupiter, Mars, Mercury and other interplanetary bodies all on the cards.
Why the Breakthrough Listen project is a step in the right direction in our hunt for life beyond Earth.