A solar plasma "waterfall" was spotted on the sun recently. More odd solar phenomena has been seen recently as the sun nears a peak of activity.Eduardo Schaberger Poupeau The sun is becoming more active and may reach peak activity sooner than expected. Solar maximum was predicted to happen in 2025, but sunspot activity has changed that. An unusual burst of sunspots this year suggests solar maximum could hit by the end of 2023. The sun is growing more active, which is expected.