This week's sky highlights the summer solstice on June 20, marking the longest day and shortest night of the year in the Northern Hemisphere. Observe Mars distancing from Regulus during late twilight. On June 21, catch the waning crescent Moon near Venus before sunrise. Antares shines brightly in Scorpius on June 22. Spot Arcturus and Spica on June 23, and compare Hercules' M13 and M92 clusters on June 24. The New Moon occurs on June 25. Watch Mercury near the crescent Moon on June 26. Arcturus and Vega dominate the night sky on June 27. From June 28-29, explore Lyra, the Summer Triangle, and the Milky Way. https://skyandtelescope.org/astronomy-news/this-weeks-sky-at-a-glance-june-20-29/