248,334 subscribers and counting ...
Depending on the temperature and humidity of the air where the snowflakes form, the resulting ice crystals will grow into a myriad of different shapes.
And how many potential supernovae are located within the unsafe distance?
Cloud streets are long rows of cumulus clouds that are oriented parallel to the direction of the wind. Check out these cool images!
Alien visitation? No. Lunar X is an example of how lighting and topography can combine to produce a pattern that seems familiar to the human eye.
New Year’s Day is a civil event. Its date isn’t precisely fixed by any natural seasonal marker.
December has two birthstones, turquoise and zircon.
Jupiter’s gravity slings long-period comets out of harm’s way, while nudging some asteroids closer to Earth. And, in 1770, Jupiter took aim on Earth – but missed.
Supervolcanoes – massive eruptions with potential global consequences – don’t appear to follow the conventional volcano mechanics, say researchers.
A big El Niño is developing in 2015, say scientists. This NASA video explains El Niño and its impact on the marine food web.
November’s birthstone, the topaz, was thought to have the power to cool boiling water, as well as excessive anger.
Moon and Mars at nightfall March 30
Sun halo over snowy Cape Breton Island