Spring officially begins today (March 20) with the vernal equinox, bringing longer days and warmer temperatures to the Northern Hemisphere. The vernal equinox signals the astronomical start of ...

You can tell spring has officially begun in the Northern Hemisphere just by looking at the stars. Here's how to easily spot the Spring Triangle without a telescope.

This story was updated to add new information. Spring has sprung, bringing warmer days and blooming flowers. Thursday is the first day of spring, or the vernal equinox, in the Northern Hemisphere.

The Northern Hemisphere’s spring — or vernal — equinox can land between March 19 and 21, depending on the year. Its fall – or autumnal — equinox can land between Sept. 21 and 24.

After that, nights in the Northern Hemisphere will shorten until the summer solstice on Thursday, June 20, when they'll get too short for all but late-night astronomy. The farther north you are ...

Look to the west on the nights following June 18 to see Mars sweep past the bright star Regulus to enter the Spring Triangle - a formation of three prominent stellar bodies that are visible as spring ...

As we hit St. Patrick’s Day, spring is right around the corner in the Northern Hemisphere, even if it doesn’t feel like it judging by Chicago’s forecast. Spring will get underway, at least ...

The Chicago area is less than a month into winter, but many residents may be curious on when spring starts later this year. Astronomical winter began in the Northern Hemisphere on the afternoon of ...