Trivia

Hard

Stars That Cannibalize Other Stars Are Known As?

Hannibals
Blue Stragglers
Gas Vacuums
Vampires
An artist's rendering of a Blue Straggler star system.
NASA, ESA, and G. Bacon (STScI)

Answer: Blue Stragglers

In 1953, astronomer Allan Sandage was measuring the intensity of stars in the globular Messier 3 star cluster (if you’re a fan of constellations, this star cluster is located in the northern constellation Canes Venatici). Sandage observed a rather peculiar occurrence right in our own celestial backyard, the Milky Way: stars that appeared far, far, younger than their nearest celestial neighbors. How could these few rogue stars appear so blue (an indicator of a higher temperature and hydrogen content, and thus younger age) compared to their neighbors, who presumably formed at the same time?

These stars maintain their youthful appearance much in the same way as the vampires of human legend: by siphoning the energy of their companions. The two most viable theories as to how this happens are that the stars are mated as binary stars and one is slowly feeding off the other, or that they are current or former binary stars that are in the process of merging or have already done so. Either way, it’s apparent that there is some sort of transfer from some stars to nearby stars. In dense regions of clusters, especially in the cores of globular clusters, there are dozens of these blue stragglers, quietly pulling the hydrogen right out of their neighbors and, in the process, extending their own lifespans at the expense of the stars they feed on.

Trivia

Hard

Which One Of These Iconic Novels Sold Less Than A Few Dozen Copies A Year For Decades After Publication?

Trivia

Hard

Which Popular Convenience Food Carries A Fire Hazard Warning?

Trivia

Hard

What Popular Online Reference Tool Predates The First Web Browser?

Trivia

Hard

Which University Is The Only One With An Alumni Chapter On The Moon?

Trivia

Easy

Painted Navigational Markers Left On Hiking Trails Are Called?

Trivia

Hard

Richard Bachman Was the Pen Name of Which Author?

Trivia

Easy

The Spicy Heat Of Chili Peppers Is Measured Using The?

Trivia

Hard

In Which Sci-Fi Franchise Did An Actor Marry The Real-Life Daughter Of His On-Screen Predecessor?

Trivia

Hard

The Tallest Habitable Masonry Structure In The World Is?

Trivia

Hard

What Were Planes Detected With Before The Invention Of Radar?