Pluto is a dwarf planet but that doesn’t make it any less worthy of our attention.
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.
Right side of the moon.
NASA/Goddard Space Flight Center Scientific Visualization Studio
The moon may be slightly older than previously thought, suggests a new study.
Enjoy the full moon’s glow.
Full moons are good reason to look up – and the one on Nov. 14 is no exception. But here’s why you likely won’t see something shockingly different from other full moons you've observed over the years.
Truth is out there.
Sonification is a technique for converting data into sound. It could transform the study of distant worlds.
How to save the Earth from an asteroid strike.
Large asteroid hits on Earth have the potential to wipe out humanity so knowing how to detect and deflect them is vital. But we know very little about the interior make up of many asteroids.
The HI-SEAS mission gives people a chance to practise on Earth what life would be like on Mars. A crew member here from the 2015 mission.
Flickr/University of Hawaii/HI-SEAS
What's the best way to find out how people will cope with the journey to Mars and life on another planet? Lock a test crew up for a year in a simulation right here on Earth.
We will soon get to hear the winds on Mars.
Scientists are excited about sending a microphone to Mars for the very first time.
Jupiter and its moon Io really do look like they do in this latest image by NASA’s Juno probe.
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.
An artist’s impression of Juno above Jupiter’s pole.
Juno’s visit to Jupiter promises to pick up on many of the unsolved mysteries that still remain in understanding of the Jovian system.
Artist’s impression of Planet Nine.
Tomruen, nagualdesign; background taken from File:ESO
Why Planet Nine should be found in the next few years ... if it exists.
Galileo’s sketches of the moon, showing its phases.
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.
Don Davis (work commissioned by NASA)
Study suggests that comets and meteorites could have seeded planets beyond our own solar system with life.
Enceladus, with its warm internal ocean, is thought to be potentially habitable.
Marc Van Norden/Flickr
A new theory could change our understanding of the moons in our solar system – and the genesis of life itself.
New Horizons continues to help unravel the icy dwarf planet’s secrets.
NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
After last summer's Pluto flyby, the New Horizons spacecraft started sending data back to Earth – at 2 kilobits per second. Here's some of what scientists have learned so far from that rich, slow cache.
An artist’s illustration of Kappa Ceti whose stellar winds are 50 times stronger than our sun’s. Any Earth-like planet would need a magnetic field to protect its atmosphere if it was to stand a chance of hosting life.
In the search for life on other planets in the universe we need to find the right kind of star, and it needs to have the right kind of space weather.
Mercury in exaggerated colour. The dark blue areas are rich in carbon.
NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
Recent research explaining why Mercury is so dark raises many new questions.
How would people react to mining on the moon?
No one nation should be allowed to go it alone and develop a mining industry in space. It needs an international effort and Australia, with a long history in mining, can play its part.
Artist’s impression: Looking back 12.9-billion km towards the sun and the inner solar system from Sedna, one of the recently discovered minor planets in the Kuiper belt.
NASA, ESA and Adolf Schaller
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.
Juno in front of Jupiter.
Missions including ExoMars, Juno and Rosetta could make some major discoveries in 2016.
A new planet in our solar system? Let's get direct proof before we start naming it.