1 AU is the average distance between the Earth and the Sun and is approximately equal to 150,000,000 km (or 1.5 × 10 11 m). Distances between the Earth and other stars and galaxies are measured ...

A new analysis examined the frequencies of planets of different sizes based on findings from NASA's Kepler spacecraft, correcting for both incompleteness and false positives. The results show that ...

The world’s biodiversity is declining at an alarming rate. Population sizes of vertebrate species measured by the Living Planet Index (LPI) have more than halved in little more than 40 years. The LPI, ...

Without question, the month of April belongs to Venus. This dazzling planet, which dominated the evening sky from last fall on through the winter, has now taken up residence in the morning sky.

Using the now-retired Kepler space telescope, astronomers have discovered that larger planets grow up in more turbulent homes ...

"There really is something very different about how these giant planets form versus how small planets like Earth form." Scientists have used data from NASA's retired planet-hunting space telescope ...