In a cosmic first, astronomers have spotted the earliest signs of rocky planet formation around a young star. The discovery ...

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby ...

It’s a yellow dwarf in the making like the sun, yet much younger at 100,000 to 200,000 years old and some 1,370 light-years away. A single light-year is 6 trillion miles.

It's a yellow dwarf in the making like the sun, yet much younger at 100,000 to 200,000 years old and some 1,370 light-years away. A single light-year is 6 trillion miles.

When a main-sequence star like our sun—also called a G-type star or a yellow dwarf—reaches the end of its life, it runs out of the hydrogen needed to power nuclear fusion in its core.

It’s a yellow dwarf in the making like the sun, yet much younger at 100,000 to 200,000 years old and some 1,370 light-years away. A single light-year is 6 trillion miles.

It’s a yellow dwarf in the making like the sun, yet much younger at 100,000 to 200,000 years old and some 1,370 light-years away. A single light-year is 6 trillion miles.

It’s a yellow dwarf in the making like the sun, yet much younger at 100,000 to 200,000 years old and some 1,370 light-years away. A single light-year is 6 trillion miles.