Helix Nebula: This a planetary nebula, which is formed when a star like the Sun runs out of fuel, expands and its outer layers puff off, and then the core of the star shrinks. Orion Nebula ...

But some players have managed to put together a lengthy list of appearances as they etch their name into the history books. Portugal captain Cristiano Ronaldo is the current leader in men's ...

Cristiano Ronaldo might be playing in Saudi Arabia these days, but he's still racking up records in Portuguese colours. The 40-year-old holds the record for most international appearances in the ...

Forbes contributors publish independent expert analyses and insights. Jamie Carter is an award-winning reporter who covers the night sky.

“That’s zero, folks!” quipped Richard Binzel, an MIT professor of planetary science who studies asteroids, in an email. The brief surge of interest in 2024 YR4, which made its way into ...

Composed of spacious shells of stellar gas and dust ejected by dying stars, planetary nebulae are produced as stars finally transition into white dwarfs. Although they are typically rare, observations ...

Planetary nebulae (PNe) are expanding shells of gas and dust that have been ejected from a star during the process of its evolution from a main sequence star into a red giant or white dwarf.

Asteroids do offer us the opportunity to stave off at least one kind of planetary disaster because, like all objects in space, they follow a clear and largely predictable orbit. An asteroid impact ...