Eight extremes: The coldest thing in the universe
2 March 2011
The bottom of the temperature scale is one area where humans have no trouble outdoing nature
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Premium
Found 116 results for dwarf planet
Dark matter: The evidence
2 February 2011
Eighty per cent of the total matter in the cosmos is invisible to conventional telescopes. But if we can't see it, how can we be so sure it's there?
Unseen universe: Window on cosmic maternity wards
1 September 2010
Infrared was the first invisible radiation discovered – it has revealed asteroids, comets, interstellar dust and the birth of planets, stars and galaxies
Weird worlds: Europa, Enceladus and Triton
24 March 2010
The seemingly bleak icy surfaces of these moons are in fact among the most active landscapes in the solar system. They may even contain cosy habitats for living creatures
Weird worlds: And the rest...
24 March 2010
Which is the largest moon? Which moon was nearly upgraded to planet status? Find out here
Let's face it, science is boring
16 December 2009
Mouse urine, puréed goldfish brains and human computers. Sound interesting? Well, it's not. Honest
Is Pluto a planet after all?
22 July 2009
Poor Pluto was demoted, to the dismay of its many fans, but it could soon be returned triumphantly to full planet status
Where do comets come from?
28 January 2009
These cosmic apparitions have had humans pondering their nature for millennia, yet theories of where comets originate still don't stand up
How will the solar system end?
28 January 2009
In the final part of our Unknown Solar System special, we discover that the solar system has been relatively peaceful since the ructions that created the planets in the first 100 million years – but this calm can't last
Is there a Planet X?
28 January 2009
Lurking in the solar system's dark recesses, rumour has it, is an unsighted world – Planet X, a frozen body perhaps as large as Mars, or even Earth
