Launched in October 2006, STEREO traces the flow of energy and matter from the sun to Earth. It also provides unique and revolutionary views of the sun-Earth system. The mission observed the sun in 3-D for the first time in 2007.

This is the latest photo of Earth's sunlit side from NASA's "EPIC" camera. The camera is part of the DSCOVR spacecraft which is permanently located in a position between Earth and the Sun. This gives it a constant view of whichever side of Earth is currently facing towards the Sun.

5 天之前 · Sunspots: There are six active regions on the sun’s Earth-facing side, with AR3976, AR3977, and AR3981 the most active. Blasts from the sun: No coronal mass ejections ( CMEs ) have struck...

2021年4月28日 · Sudden bursts in the solar wind can trigger beautiful auroras on Earth, but can also disrupt radio and GPS signals, threaten our satellites, and pose a risk to electrical power grids at the surface. Among the six balloon flights to take off between now and mid-June, four experiments will study different aspects of the Sun’s influence.

2022年6月15日 · These images from NASA’s DSCOVR mission shows the Sun-facing side of Earth during the December 2018 solstice (left) and June 2019 solstice (right). Notice how much of each hemisphere is visible in each photo; December’s solstice heavily favors the Southern Hemisphere and shows all of South America and much of Antarctica and the South Pole ...

Our data provide information about nearly every aspect of Sun-Earth interaction including observations of the dynamic processes of the Earth's ionosphere and solar magnetosphere triggered by solar events, changes in the Sun’s appearance or behavior, and measurements of solar energetic particles associated with solar flares and coronal mass ...

2017年8月14日 · A substantial coronal hole rotated into a position where it is facing Earth (Aug. 9-11, 2017). Coronal holes are areas of open magnetic field that spew out charged particles as solar wind that spreads into space. If that solar wind interacts with our own magnetosphere it can generate aurora.

2023年3月14日 · This active region was on the Earth-facing side of the Sun from late February through early March, when it unleashed fifteen moderately intense M-class flares and one powerful X-class flare. Based on an analysis by NASA’s Moon to Mars Space Weather Office, the CME was clocked in traveling at an unusually fast 2,127 kilometers (1,321 miles ...

5 天之前 · The connection and interactions between the Sun and Earth drive the seasons, ocean currents, weather, climate, radiation belts and auroras. Though it is special to us, there are billions of stars like our Sun scattered across the Milky Way galaxy. The Sun has many names in …

The famous active region on the Sun that created auroras visible around the Earth earlier this month has survived its rotation around the far side of the Sun -- and returned. Yesterday, as it was beginning to reappear on the Earth-facing side, the region formerly labeled AR 3664 threw another major solar flare , again in the highest-energy X ...