May - Cool as Ice Every winter, a layer of carbon dioxide frost (dry ice) forms on the surface of Mars. At its greatest extent in midwinter, this frost reaches from the poles down to the middle ...

Mars shines in the evening, and is joined briefly by Mercury. Jupiter joins Venus as the month goes on. And all month, look ...

The solar wind starts its journey at the Sun. It emanates from features on the Sun such as dark and cool regions called coronal holes and active regions, which are characterized by strong magnetic ...

Open Principles The principles of open science are to make publicly funded scientific research transparent, available, and reproducible. Advances in technology, including collaborative tools and cloud ...

Solar Flares A solar flare is an intense burst of radiation, or light, on the Sun. These flashes span the electromagnetic spectrum — including X-rays, gamma rays, radio waves, and ultraviolet and ...

NASA’s Incredible Discovery Machine: The Story of the Hubble Space Telescope Thanks to five servicing missions and more than 30 years of operation, our view of the universe and our place within it has ...

There’s no popping out to the hardware store for a different tool when you’re on the job in space. Engineers, working closely with astronauts as they trained for and worked on Hubble, developed ...

On most nights, weather permitting, you can spot at least one bright planet in the night sky. While two or three planets are commonly visible in the hours around sunset, occasionally four or five ...

For 540 million years, the ebb and flow in the strength of Earth's magnetic field has correlated with fluctuations in atmospheric oxygen, according to a newly released analysis by NASA scientists. The ...

A NASA-sponsored team is creating a new approach to measure magnetic fields by developing a new system that can both take scientific measurements and provide spacecraft attitude control functions.

Solar images from NASA’s Solar Dynamics Observatory show different features on the Sun, including sunspots in the visible light spectrum. Filaments and prominences can be seen in hydrogen-alpha, ...