Ellipses are defined as curves that surround two focal points. At any point on the ellipse, the sum of the distance to both ...

Look for the dates for astronomical events such as a pink full moon, the Lyrid meteor shower, and the moon hanging out with ...

When a comet is discovered, it is necessary to calculate its orbit, and predict where it will be in future by the aid of an ephemeris As mentioned in the article on Brooks comet (Scientific ...

Skywatchers across the U.S. are in for a treat this month as two notable celestial events – the Pink Moon and the peak of the ...

The Oort Cloud, technically, isn't a confirmed place. It's a theoretical location. Some comets orbit the Sun over hundreds of thousands or even millions of years. They must, therefore, call ...

Only four other comets have ever shown such activity while approaching from more than 20 astronomical units (AU) from the Sun — as far out as the orbit of Uranus. (One AU is the average Earth ...

An curved arrow pointing right. The Rosetta spacecraft has been trailing a comet for the last two and a half years, on a slow, spinning ride to it's ultimate destruction. But science thanks you ...

Soon after, Rosetta will deploy its lander, Philea, to study the mysterious comet up close, and the trio will travel together around the closest point in its orbit of the sun. (Video: ESA ...

Lyrid meteor shower, which peaks the night of April 22, is one of the main April highlights for sky-watchers. This meteor ...

Sometimes a comet such as Shoemaker Levy 9 will go into orbit around Jupiter and act as a moon. Others leave Jupiter's orbit and go back around the sun. Comets are like cats; they both have tails ...