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Sunspot, and chance of weekend storms
Experts say there's a 60% chance this weekend of geomagnetic storms, possibly causing auroras. Plus, over the past couple of days, a lone sunspot has grown rapidly!
July 7, 2017
Solar minimum is coming
Low ebb in the 11-year sunspot cycle expected 2019-2020. Want some basic information about the sunspot cycle and its effects? Watch this NASA ScienceCast.
July 7, 2017
Breathtaking night-shining clouds
Wonderful video showing noctilucent - or night-shining - clouds recorded on July 1 and 4. These clouds shine in the darkness, typically on summer nights.
July 7, 2017
Make a pinhole projector for eclipse-watching
You don't need fancy equipment to watch a solar eclipse. This video shows you how to make a pinhole camera with just a few simple supplies.
July 7, 2017
If greenhouse gas emissions ended now…
Would climate change stop? The simple answer is no. A climate scientist explains.
July 7, 2017
See the moon, Saturn, Antares in a line
Golden Saturn, 6th planet outward from the sun, is the farthest world you can see easily with the unaided eye. Antares is a bright, reddish star.
July 7, 2017
How do planets form after star death?
Supernova explosions destroy pre-existing planets. Yet astronomers observe planets orbiting tiny, dense, essentially dead neutron stars left behind by supernovae. How do the planets get there?
July 6, 2017
Earthquake rocks Montana early Thursday
The 5.8-magnitude earthquake in western Montana took place just after midnight, local time. It woke people up near the epicenter and was felt throughout the region. Expect aftershocks.
July 6, 2017
Jupiter at east quadrature July 6
It's a hallmark in Jupiter's appearance in our sky. At eastern quadrature, Jupiter is highest in the sky around 6 p.m. local time
July 6, 2017
