Celestial transits-where a celestial body is seen to pass across the solar disk from the perspective of the Earth-are relatively rare events. The planet Mercury undergoes around 13 transits a century, and Venus has a pair of transits approximately every 120 years. In 2012 the SWAP EUV imager on the PROBA2 satellite successfully observed a Venus transit of the Sun. On May 9, 2016, it was Mercury's turn! The Mercury transit was seen from Earth starting at 11:13 UT and ending at 18:42 UT. The total transit time was around 7 hours and 30 minutes.
What did we expect to see in SWAP observations? SWAP is an EUV telescope onboard the ESA PROBA2 satelite, it observes the Sun at roughly 1 million degrees from orbit around the Earth. Mercury is expected to be pictured as a small black disk crossing the face of the Sun, which would be seen as roughly 4 pixels in diameter. The PROBA2 team created a simulation of what SWAP was expected to see, which is shown in the video below. This simulation illustrates the path of Mercury as it crosses the Sun from the perspective of SWAP on PROBA2. The path of Mercury appears to 'wobble' as it crosses the Sun, but this is an artificial effect created by parallax from the changing perspective of Mercury in the PROBA2 field-of-view as the spacecraft orbits the Earth.
The PROBA2 team is proud to present fully automated and daily updated Carrington rotation movies. A Carrington Rotation is a period of time chosen to represent one rotation of the Sun, allowing the comparison of features such as sunspot groups or active regions (a description of active regions can be found 
On February 26th, lucky observers along the eclipse path in Chile, Argentina, Angola, Zambia and The Democratic Republic of the Congo have been able to witness an annular eclipse.
The PROBA2 team is pleased to announce the 14th PROBA2 Science Working Team (SWT) meeting, which will be held on Wednesday November 16, 2016 from 13:15 to 14:45 central european time at the 
We received the first data from LYRA and SWAP! Find all images and movies 
Update: With exciting science talks and participation from all around the globe, SWT13 was a success. A big thank-you to all who contributed! Meeting notes can be found 
On 2016 March 8 and 9, a solar eclipse took place over the Pacific Ocean. This eclipse was total -that is, the entire solar disk was covered by the Moon- over Indonesia and the central Pacific, starting at sunrise over Sumatra and ending at sunset north of the Hawaiian Islands. Additionally, large parts of South-East Asia, Alaska and Australia witnessed a partial solar eclipse. The path of totality had a maximum width of 155 km and the maximum duration was 4 minutes and 9 seconds at the point of greatest eclipse, which was over the waters of the Pacific Ocean.
