2016 Mercury Transit
It happens less than once a decade -- and the last chance to see it was on 9 May 2016...
Hot Shots from SOHO
SOHO's 20th Birthday
SOHO was launched on 2 December 1995, for what was originally planned as a two-year mission. Twenty years later, it's still going strong...
JHelioviewer: A new way of looking at the Sun
JHelioviewer is new visualization software that enables everybody, anywhere to explore the Sun...
the sun now
|At 23:17 UT|
|Speed: 420 km/s|
|Density: 2.45 p/cm3|
best of soho