On Dec 10th, sky watchers in the western United States will witness a total lunar eclipse swollen to super-sized proportions by the Moon illusion.
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Winter seems to have been on hold this year in some parts of the United States. Snowfall has been scarce in places that were overwhelmed with the white stuff at the same time last year. In this ScienceCast, JPL climatologist Bill Patzert explains what's going on.
A "ring of fire" solar eclipse is coming to the USA this spring. It's the first annular eclipse visible from the contiguous United States in almost 18 years.
Another "super-Moon" is in the offing. The perigee full Moon in May will be as much as 14% bigger and 30% brighter than other full moons of 2012.
One year after the historic tornado outbreak of April 27-28, 2011, researchers say they've learned a few things about deadly twisters. This week's ScienceCast presents some of the scientific findings that emerged from the swath of destruction.
The second full Moon of August--a "Blue Moon"--is just around the corner. It will probably look just like any other full Moon but, on rare occasions, the Moon really does turn blue. Could it happen this month?
Life as we know it doesn't thrive on planets without ozone layers. A new instrument slated for launch to the ISS will monitor Earth's protective ozone shell with greater depth and precision than ever before.
Glowing electric-blue at the edge of space, noctilucent clouds have surprised researchers by appearing early this year. The unexpected apparition hints at a change in the "teleconnections" of Earth's atmosphere.
Arctic permafrost soils contain more accumulated carbon than all the human fossil-fuel emissions since 1850 combined. Warming Arctic permafrost, poised to release its own gases into the atmosphere, could be the "sleeping giant" of climate change.
California is experiencing a historic drought--by some measures the deepest in more than 100 years. NASA researchers are investigating a number of explanations for what the underlying cause may be.