Why Earth Is So Much Bigger Than Mars?

Applying a new way in planetary formation modeling, where celestial bodies develop from tiny objects named  ‘pebbles,’ researchers reveal why Mars is so much tinier than Earth. This same process also reveals the rapid creation of the gas giants Jupiter and Saturn, as announced earlier this year.

Astronomers Peek Inside Stars

Astronomers have studied the magnetic fields in the concealed inner areas of stars for the first time. Using a new method named asteroseismology, which uses sound waves created by turbulence on the surface of stars to figure out their inner properties, the researchers discovered that the fusion-powered cores of red giants, stars that are extended versions of our sun, are …