The Brief NASA is sending a trio of satellites towards the sun to track space weather. NASA is set to launch three satellites Wednesday aimed at tracking solar storms and improving forecasts of space weather that can affect life on Earth. What we know:NASA is upgrading its satellites around the sun with its latest space weather tracking mission. Launching alongside IMAP is NOAA’s critical space weather tracking satellite. Strengthening space weather predictions will also help astronauts heading to the moon and Mars.