61 US cities and three states vow to uphold Paris climate agreement
Mayors and governors plan to support the accords on their own.
Trump withdraws US from Paris climate change agreement
Trump says the US might re-enter after extensive negotiations.
Earth's radio signals may be protecting it from space radiation
Take that, Van Allen belts
Google Earth feeds your wanderlust with 'Voyager' stories
And you can get it right in your browser, too.
German researchers built a molecule-splitting artificial sun
It could lead to new ways of producing hydrogen fuels.
NASA plans to make a telescope out of the Sun
But there is a catch.
India sets record launching 104 satellites aboard a single rocket
That's a huge flock of Doves.
Scientists may have discovered a lost continent
We might have to rethink our models of ancient Earth.
Some of Earth's oxygen escapes to the moon every month
And it's been going on for more than 2 billion years.