SpaceSome TRAPPIST-1 planets may have the right conditions for water Water on the planets nearest the TRAPPIST-1 star would be destroyed by UV radiation but it could survive on the cooler worlds in the habitable zone ¿ìè¶ÌÊÓÆµ
SpaceUranus's crooked, messy magnetic field might open and shut daily The off-kilter tumbling of the magnetic bubble around Uranus may regularly let a barrage of charged particles from the solar wind flow in ¿ìè¶ÌÊÓÆµ