Both measurements imply that approximately half of the Earth’s heat caused by radioactivity (20 terawatts) can be explained by decays of uranium and thorium. The source of the remaining 50% is ...

On Friday, Earth will swing toward the outermost point in its orbit, known as aphelion. You, me and everyone on the planet will be 3 million miles farther from the sun than when we are closest to it.

Since Kepler's laws of motion dictate that celestial bodies orbit more slowly when farther from the sun, we are now moving at ...

Good morning! Top o’ the orbit to you! At 8:06 P.M. UTC (4:06 P.M. EDT) on July 6, 2023, Earth will reach the point in its orbit when it’s farthest from the sun. In a sense, it’s like our ...

The heat comes at a time when our planet is millions of miles farther from the sun than it is in January. In fact, we're the farthest from the sun on July 6 than we'll be on any day for the next year.

Despite the heat wave in the American West, the Earth reaches aphelion—94,508,959 miles from the sun—on Friday.

Earth-sun distance dramatically alters seasons in the equatorial Pacific in a 22,000-year cycle An unrecognized effect boosts or diminishes the Pacific cold tongue, likely impacting El Niño/La ...

The known sources of heat from the Earth’s interior are radioactive decays, and residual heat from when our planet was first formed. The amount of heating from radioactivity, estimated based on ...