Posts by 

Deborah Byrd

What is the Great Filter, and can we survive it?

A new study suggests the reason we haven't found intelligent civilizations in the galaxy is that such civilizations might not have survived their Great Filter.

Is there a North Star for Mars?

Is there a North Star for Mars ... a guide star for future explorers? Not in any satisfying way. But Martian stargazers wouldn't lack for things to see!

1st intentional signal to space sent by Arecibo

Iconic Arecibo telescope is no longer operational. But its legacy lives on. And in 1974, Arecibo sent earthlings' 1st intentional signal to space.

Gold-rich stars as Milky Way ‘fossils’

New computer simulations show that most gold-rich stars were formed in low-mass dwarf galaxies that merged with our Milky Way galaxy some 10 billion years ago.

One supernova at 3 different times in cosmic history

How can we see one supernova at 3 different times in cosmic history? The answer lies in the powerful gravity of a giant galaxy cluster.

World population to hit 8 billion this month

The world population will reach 8 billion people on November 15, 2022. Read more about population trends across the world.

Space-based solar power to become reality?

Space-based solar power is a long-held dream of space visionaries. ESA will present a plan to implement it at an upcoming council meeting later this month.

Uranus at opposition November 8-9, 2022

Uranus at opposition November 8-9, 2022. At this time, it's brightest for the year and visible to the eye under optimum conditions. Here's how to see it.

Lunar eclipse: Tips for watching the eclipse

A total lunar eclipse is coming up on the morning of November 8, 2022. Here are some tips for watching and enjoying the eclipse.

Daylight Time ends: 7 tips to help you adjust

Daylight Time ends on November 6, 2022. Here are 7 tips from the American Academy of Sleep Medicine to help you adjust.