Because of the long nights, winter is best to see the northern lights, but they occur year-round. March and September can be good because the Earth’s magnetic field aligns better with the ...

Summer officially begins in the Northern Hemisphere today (June 20), marking the longest day of the year. During the summer solstice, also known as the June solstice, the sun reaches its highest and ...

Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the Northern Hemisphere). Check my main feed for more in-depth articles ...

Last summer's sweltering heat broke more than city or regional or even national records. In what they call an "alarming finding," scientists say that in the Northern Hemisphere, the summer of 2023 was ...