About the Mauna Loa Solar Observatory

The Mauna Loa Solar Observatory (MLSO) occupies part of the NOAA Mauna Loa research site located on the flank of Mauna Loa at an elevation of 3440 meters on the island of

Mk II Coronal Activity Monitor Instrument

Solar Energetic Particle Alerts from a Coronagraph

In this NASA-led study, we report the concept of using near-real time observations from a coronagraph to provide early warning of a fast coronal mass ejection (CME) and the possible onset of a sola

A handy, scalable web display of recent solar movies and helpful information

The Sun Today is a single-page website dedicated to displaying the most recent movies from MLSO and other solar instruments.

Solar Maximum Mission Information and Data on the MLSO website

The Solar Maximum Mission (SMM) satellite was launched in 1980 aboard a NASA Delta rocket.

Data/Obs & Facilities

MLSO Home Page

Latest MLSO Images

NOTE: The current day's movie (while data is still coming in from MLSO) consists of 15-sec avg images; movies from previous days consist of 2-min avg images.

K-Cor Instrument

K-Corona