Jan 20, 2026 · A star is any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources. Of the tens of billions of trillions of stars in the observable universe, …

A star is a luminous spheroid of plasma held together by self-gravity. [1] The nearest star to Earth is the Sun. Many other stars are visible to the naked eye at night; their immense distances from Earth …

May 2, 2025 · A star’s gas provides its fuel, and its mass determines how rapidly it runs through its supply, with lower-mass stars burning longer, dimmer, and cooler than very massive stars.

Jan 20, 2026 · Star - Formation, Evolution, Lifecycle: Throughout the Milky Way Galaxy (and even near the Sun itself), astronomers have discovered stars that are well evolved or even approaching …

2 days ago · The biggest winners of the night were the fans as the All-Star Game was competitive and featured some defense this year.

Mar 20, 2019 · These large, swelling stars are known as red giants. But there are different ways a star’s life can end, and its fate depends on how massive the star is.

Dec 18, 2025 · Scientists call a star that is fusing hydrogen to helium in its core a main sequence star. Main sequence stars make up around 90% of the universe’s stellar population.

2 days ago · The new round-robin format for the 2026 NBA All-Star Game was an instant hit. Team USA Stars, featuring event MVP Anthony Edwards, Tyrese Maxey and Cade Cunningham, emerged …

2 days ago · 2026 NBA All-Star Game results, scores: USA Stars win title as new format raises level of competition Anthony Edwards led the USA Stars team on what was a (mostly) competitive night at …

1 day ago · Winners from NBA All-Star 2026 and a look ahead Enjoy some of the best of NBA All-Star Weekend, historic moments and analysis of the upcoming season with the NBA.com live blog.