Fascinating faculae provide a way for anyone with a small telescope to track the ups and downs of the solar cycle — even when there are no sunspots.
We examine the fascinating solar phenomena that anyone with a small scope and safe solar filter can see, whether the Sun's in eclipse or not.
Two big, naked-eye sunspot groups are putting on a splendid show this week. We're also in the crosshairs for a strong geomagnetic storm and possible auroras.
Our star is an amazing object to observe, whether by eye or with optical aid. These time-tested tips will let you see the solar disk worry-free.
Sundials are amazingly simple yet effective devices. They range from sticks planted in the ground to precision-machined marvels costing thousands of dollars. The design shown here can be constructed in minutes from materials lying around your house, but it's surprisingly accurate.
The Sun, now halfway through its life, might be slowing its magnetic activity, which could lead to permanent changes in the sunspots and auroras we see.
NASA's Parker Solar Probe, set to launch in 2018, will be humanity's first effort to "touch the Sun," revolutionizing our understanding of the Sun's corona, the solar wind, and the greater heliosphere.
Want to see a star rock in real time? Observe the Sun in the crimson light of hydrogen alpha and watch it come alive.
The surface of the Sun is a dynamic, living place that can change unpredictably from day to day.
Michelle Thaller speaks with NASA's Alex Young about the space agency's impressive fleet of Sun-monitoring spacecraft — including the upcoming Solar Probe Plus.
Nicki Viall, a heliophysicist at Goddard Space Flight Center, shares her excitement over the Parker Solar Probe — the spacecraft that will allow scientists to "touch" the Sun.
If you like sunrises and sunsets, look for the green flash, a phenomenon that happens more often that you think.
Scientists are studying 400-year-old data to predict space weather in the coming decades — and it seems that future may hold fewer Northern Lights.
Astronomers have reconstructed 18-century telescopes to observe sunspots and better understand solar cycles.
Solar astronomers may have finally detected gravity waves in our star’s core, revealing that the Sun’s central region rotates about four times faster than the outer layers.
Daylight ebbs to a minimum on Wednesday's winter solstice, but not for long. The very next day, the Sun turns back north and the cycle of light begins again.
Feared lost for almost two years, NASA's Stereo B solar observatory is now back in (tentative) contact with mission control.
The Sun has been unusually quiet lately. Since the start of 2017, only a single tiny sunspot has made a brief appearance on the solar disk.
Scientists are struggling to explain the Sun’s bizarre recent behavior. Is it a fluke, or a sign of a deeper trend?
Stars are time machines that can transport us into the past or future. They can also illuminate our own personal journeys, as Arcturus did for me one night.
Why are "sundogs" called by that name? Before answering the why question, let me answer the what question that comes before: namely, what is a sundog, or mock Sun, in the first place? A sundog is a concentrated patch of sunlight occasionally seen about 22° to the left or right of the Sun. Sundogs often…