Science

This region, called Sagittarius A*, is a very bright and compact radio source with a mass of 3.7 million solar masses and a diameter of approximately 44 million kilometers.

The genetic material of organisms trapped within the amber is dissolved, so there is no possibility of recreating millennia-old creatures, such as dinosaurs, plainly out of the remnants from amber.

Beyond Earth, lava can reach even higher temperatures; the record holder is Io, Jupiter's moon, where satellites have recorded lava flows with an average temperature of 1,300 °C (2,370 °F).

It is used there to obtain silver halides (primarily silver bromide) used as photosensitive substances.

These droplets attach themselves to nuclei of crystallization, which can be, for example, dust parti ...

Snow crystals are almost perfectly symmetrical, although most are irregular in many respects. The ru ...

It is bigger than its companion, Deimos.

This is because our natural satellite is in synchronous rotation with the Earth. A long time ago, th ...

These layers alternate. The surface of the moon consists of hard ice several kilometers thick.

This period lasted from 370 thousand to 1 billion years after the Big Bang. During this time, matter ...