The increase in the number of solar missions is no coincidence. The reason behind this has to do with the solar cycle

NASA and SpaceX are set to launch the SPHEREx and PUNCH missions on March 4, aiming to explore cosmic origins and the Sun’s outer atmosphere. The event will be broadcast live on NASA+, with a prelaunch briefing on March 3.

If all goes to plan, two NASA missions called "SPHEREx" and "PUNCH" will be sharing a ride to space very soon. The agency plans to launch both missions at the same time no earlier than Sunday (March 2) aboard a SpaceX Falcon 9 rocket;