Search | 91av

Found 273 results for dwarf planet

When things look bleak, thinking in terms of ‘hope horizons’ can help

23 September 2020

With wildfires raging, the outlook looks bleak from San Francisco. Thinking about the future in terms of “hope horizons” can help, writes Annalee Newitz

Strange worlds unlike Earth may be our best bet to find alien life

26 August 2020

From rogue worlds that roam the cosmos alone to Tatooines that orbit two suns, astronomers are expanding our definition of habitable exoplanets

Earth-sized exoplanets around small stars may have intense hurricanes

14 July 2020

Hurricanes may be common on exoplanets that orbit small, red stars over the course of about 10 days, and they are most likely to form on planets that are tidally locked, and so have one side with perpetual daytime

Puzzle #67: What relationship do the digits in this prime number have?

8 July 2020

Can you solve this week’s puzzle My Prime? Plus the answer to puzzle #66 set by Will Taylor

Pluto's tiny moons may have been chipped off its biggest moon

30 June 2020

Pluto has one very large moon, Charon, and four tiny ones, leaving astronomers confused as to how they formed. The answer may be that the quartet used to be part of Charon, not Pluto

Pluto formed quickly with a deep ocean covering its entire surface

30 March 2020

Pluto’s ancient oceans may have come about just after the icy world was born, melting from ice in a process that suggests the dwarf planet took just 30,000 years to form

Solar flares and cosmic rays may make Proxima b warm enough for life

12 March 2020

Proxima Centauri b, a planet orbiting our nearest stellar neighbour, is being blasted with cosmic rays and solar flares – which could make it warm enough to host life

A star exploded into a supernova but it weirdly isn't very bright

3 February 2020

Astronomers have spotted a star that is exploding with a brightness 100 times less than expected – and it’s a mystery exactly why the explosion is so dim

Are dark matter and dark energy related in anything apart from name?

1 January 2020

There is no law of physics dictating that dark matter and dark energy can’t be connected, and it is natural to wonder about it, writes Chanda Prescod-Weinstein