A sci-fi idea is gaining supporters, from billionaires to city councils. Whether it's feasible is another matter.

A team of scientists has investigated how Earth’s twin became so inhospitable, and whether the same will happen to our planet ...

Solar panels may offer affordable energy — but their installation can be prohibitively expensive for many homeowners.

This technology will not only benefit consumers. First-of-its-kind energy project launches in US lake: 'An exciting opportunity' first appeared on The Cool Down.

Astronomers have discovered the raw ingredients of planets orbiting two infant stars, offering a glimpse into how new worlds ...

With new telescopes coming online and fresh discoveries arriving almost weekly, the search is only accelerating. Each new world we find is more than a point of light somewhere in the great darkness.

Federal funding is about to run out for 19 active space missions studying Earth's climate, exploring the Solar System, and probing mysteries of the Universe.

Hobby Airport's new solar canopy on the Red Garage roof now fully operational, generating clean energy to power airport ...

By combining state grants with a federal tax credit, schools could install solar for free or a fraction of the cost.