As the month closes, the planet spans 37″ and the Sun illuminates 28 percent of its Earth-facing hemisphere. Like Venus, Mercury passed through inferior conjunction in late March and grows ...

As the Northern Hemisphere welcomes spring today, the Southern Hemisphere is marked with the first day of autumn.

They break down the year into three-month seasons based on annual temperature ... of the spring season for the Northern Hemisphere and the fall in the Southern Hemisphere. On the equator, the ...

The vernal equinox arrives on Thursday, marking the start of the spring season for the Northern Hemisphere and the fall in the Southern Hemisphere ... the year into three-month seasons based ...

So, some time in the next month or so is a good time ... vaccine strains for the following northern hemisphere season, and around September for the southern hemisphere. Although all current ...

La Nina exits after three weak months, leaving Earth ... marking the start of the spring season for the Northern Hemisphere and the fall in the Southern Hemisphere. On the equator, the sun will ...

The vernal equinox arrives on Thursday, marking the start of the spring season for the Northern Hemisphere and the fall in the Southern Hemisphere ... the year into three-month seasons based ...

Planet-warming fossil fuel pollution is tipping the scales toward hotter oceans that fuel dangerous storms. Scientists say ...