The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

Solar generation for the first 11 months of 2024 increased by over 26%, according to the US EIA's latest monthly report.

REx brought back to Earth 121 grams of material from asteroid Bennu. This is the largest sample ever collected and brought ...