These 366 images of the sun were made by ESA's Proba-2 satellite in 2020.

This satellite is continuously monitoring the changing activity of the sun. One image was selected to represent each day of the year (including leap day 29 February in 2020). Click here for an animated version.

The images were taken by the satellite's SWAP camera, which works at extreme ultraviolet wavelengths to capture the sun's hot turbulent atmosphere (the corona) at temperatures of about a million degrees Celsius.

In two images—21 June and 14 December—a partial solar eclipse is visible from Proba-2's point-of-view.

2020 marked the start of a new solar activity cycle—cycle 25—which lasts about 11 years on average. At the beginning of the year the sun still showed low levels of activity, but at the end of the year it already showed signs of waking up.

In the images of November and December, multiple active regions are visible. These regions represent areas of intense magnetic activity that can produce some of the most dramatic space weather events, such as solar flares and coronal mass ejections.

With only about 50 million miles (80 million kilometers) left to go in its 293-million-mile (471-million-kilometer) journey, NASA's Mars 2020 Perseverance rover is nearing its new planetary home. The spacecraft has begun its approach to the Red Planet and in 43 days, on Feb. 18, 2021, Perseverance will blaze through Mars' atmosphere at about 12,100 mph (19,500 kph), touching down gently on the surface about seven minutes later.

"We're working on our last adjustments to put Perseverance in perfect position to land in one of the most interesting places on Mars," said Fernando Abilleira, deputy mission manager at NASA's Jet Propulsion Laboratory in Southern California.

NASA's upcoming space telescope, the Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer, or SPHEREx, is one step closer to launch. The mission has officially entered Phase C, in NASA lingo. That means the agency has approved preliminary design plans for the observatory, and work can begin on creating a final, detailed design, as well as on building the hardware and software.

Managed by NASA's Jet Propulsion Laboratory in Southern California, SPHEREx is scheduled to launch no earlier than June 2024 and no later than April 2025. Its instruments will detect near-infrared light, or wavelengths several times longer than the light visible to the human eye. During its two-year mission, it will map the entire sky four times, creating a massive database of stars, galaxies, nebulas (clouds of gas and dust in space), and many other celestial objects.