Today is the summer solstice in the Northern Hemisphere. It’s summertime! 😎 Earth orbits at an angle. Solstices happen twice a year, at the points in Earth’s orbit where this tilt is most pronounced. Half the year the Northern Hemisphere is tilted toward the Sun — making it summer. The other half of the year, the Northern Hemisphere is tilted away from the Sun making it winter. The summer solstice is the longest day of the year & the official start of summer. | NASA Space Alerts