Milky Way

February 22, 2019

Where are all the aliens? Struggling and hustling, just like us

Conventional wisdom has it that aliens should be either everywhere, or nowhere. A new model suggests they can be both. If the galaxy is billions of […]
September 25, 2018

Matter clocked speeding toward a black hole at 30 percent the speed of light

The event provides evidence for how early supermassive black holes grew so fast. After falling past the event horizon — the point of no return — […]
April 9, 2018

Why Extraterrestrial Life May Be More Unlikely Than Scientists Thought

Phosphorus is an essential element for life — but that there was enough of it for life to start on Earth might just have been a […]
March 16, 2018

IF WE DO HEAR SIGNALS FROM ALIENS, THEY’RE PROBABLY LONG GONE

In 1961, famed astrophysics Frank Drake proposed a formula that came to be known as the Drake Equation. Based a series of factors, this equation sought to […]
January 11, 2018

Scientists closer to unveiling source of mysterious bursts from distant object

An object is producing multiple short, powerful, fast radio bursts, but scientists don’t know why In a galaxy three billion light-years from Earth is a peculiar […]
July 15, 2017

Who’s Out There?—Problems Getting Started

Since wet chemists on Earth have not reinvented life from scratch—not one self-reproducing living critter, nor even a self-serving prion–we can probably assume that it’s not […]
June 22, 2017

Is It Time to Rethink How We Search for Alien Life?

WASHINGTON — From the lovable, candy-munching E.T. to the deadly Xenomorphs from the “Alien” movies, science-fiction stories are bursting with all kinds of alien encounters. But […]
June 14, 2017

Our sun might have been born with an evil twin called “Nemesis”

Sunlike stars often come in twos and threes, and astronomers and astrophysicists have long wondered why. Are these pairs and trios born as multiple stars orbiting the same point, […]
June 13, 2017

12 Possible Reasons We Haven’t Found Aliens

In 1950, a learned lunchtime conversation set the stage for decades of astronomical exploration. Physicist Enrico Fermi submitted to his colleagues around the table a couple […]