A delicate sunshield unfolded on a test unit of NASA's James Webb Space Telescope.
Even a mild shock wave in the solar wind can suddenly amp up the equatorial electrojet and create localized magnetic storms.
The aircraft over the course of the journey set records for longest solo flight and most time in a solar-powered flight.
The U.S., Brazil and China all released major commitments to reduce or at least slow their greenhouse gas emissions. Continue reading →
These mysterious electric blue wisps, which form on the edge of space, could be a sign of climate change.
Smoke from Canadian wildfires, as it turns out, created that deeper solar hue.
The first day of Spring began with some dazzle in Europe and the Arctic with a solar eclipse.
This image isn't a close-up from the garden, but an active area of strong magnetic fields on the sun's chromosphere.
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