Could the nearby star Sirius B explode as a type Ia supernova, like some other white dwarf stars in binary star systems have? Bruce Mason Encinitas, California A type Ia supernova occurs when a ...

CAPE CANAVERAL, Fla. — SpaceX launched a veteran Falcon 9 rockets on its seventh trip to space Sunday (Dec. 13) to carry a massive radio satellite into orbit for Sirius XM and then return to Earth.

Memorial Day weekend is often touted as the unofficial start of summer across the United States, but the first official day ...

Sirius’ brightness is also helped by its size, nearly 1.5 million miles in diameter. Our sun isn’t even a million ... As the two orbit each other, the intense gravity of the white dwarf ...

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

That sun/Sirius pairing, they believed, always delivered the hottest days each mid- to late summer. The ancients were on to something. Typically, the highest temps of the year happen after the sky ...

The dog days of summer, the period during which the star Sirius rises alongside the sun, run from July 3 to August 11. Ancient people believed that Sirius influenced the weather, among other ...

A type Ia supernova occurs when a white dwarf — the cooling remnant of an aging star — draws hydrogen from a companion sun. When the dwarf reaches 1.4 times the mass of the Sun, the star ...