On the morning of March 31, 2020, these three worlds will be at their mutual closest in 20 years. For the past few weeks, Mars, Saturn, and Jupiter have all shone […]
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Millions of Americans are quitting their jobs, but even if you can’t join the Great Resignation, you can still pursue a do-over moment.
A physicist creates an AI algorithm that predicts natural events and may prove the simulation hypothesis.
A meteorite that smashed into a frozen lake in Michigan may explain the origins of life on Earth, finds study.
The odds are slim, but the consequences would be devastating. Here’s what would happen, plus how to avoid it.
Avi Loeb says it’s aliens. Every other astronomer disagrees. Here’s why. In 2017, an astronomical event occurred that was unlike any other: for the first time, we observed an object that […]
The surface and atmosphere is colored by ferric oxides. Beneath a very thin layer, mere millimeters deep in places, it’s not red anymore.
Catch Saturn at its biggest and brightest, and view its rings while you still can. Right now, in Earth’s skies, Saturn appears at its biggest and brightest. A view of tonight’s […]
An artist’s impression of what the fully-deployed James Webb Space telescope will look like from the perspective of an observer on the ‘dark’ (non-Sun-facing) side of the observatory. (NORTHRUP GRUMMAN) […]
At its biggest for the next 15 years, it’s still much smaller than the Moon. On October 6, 2020, Mars makes its closest approach to Earth until 2035. Earth orbits in […]
In 2006, the IAU demoted Pluto. Here’s what we know today. In 2006, the last planet in our Solar System suffered an unforgettable insult, as Pluto — known for generations as our ninth […]
Just because you have “star” in your name doesn’t mean you are one. When we think about the objects in our Universe, they fall into two categories: self-luminous objects, like stars, […]
Science doesn’t exist in a cultural and existential vacuum and its teaching shouldn’t either.
How many potentially habitable planets are there? We sincerely don’t know. One of the most compelling scientific goals humanity has set for itself is to find extraterrestrial life: biological activity originating […]
With launch costs dropping and enormous numbers of new satellites filling the sky, can’t we just do it all from space?
Dark matter must gravitate, so why couldn’t the graviton solve it? One of the most puzzling observations about the Universe is that there isn’t enough matter — at least, matter that we know […]
We’re not made out of the densest elements, but we’re the densest planet nonetheless. Here’s why. Of all the planets, dwarf planets, moons, asteroids and more in the Solar System, only […]
The Moon, Venus, and Jupiter are the brightest night sky objects. On Thursday evening, November 28, they’ll all align, plus Saturn, too. As the planets orbit the Sun throughout the year, […]
Once science operations begin for James Webb, we’ll never look at the Universe the same way again. Here’s what everyone should know.
These Roman Emperors were infamous for their debauchery and cruelty.
When three wise men gifted baby Jesus with gold, frankincense, and myrrh, they had no idea one was made from colliding neutron stars.
Life arose on Earth very early on. After a few billion years, here we are: intelligent and technologically advanced. Where’s everyone else?
A lifelong fan on why she’s drawn to the magnificent gas giant.
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Named M51-ULS-1b, it’s certainly a curious astronomical event. But the evidence is far too weak to conclude “planet.”
It’s that the Universe can be understood at all. Don’t deafen yourself to its lessons. In a nutshell, 2020 has been a unique year in human history. For the first time […]
It likely isn’t the rare occurrence we once thought it was. In our Solar System, there’s one overwhelming source of mass that all the planets orbit around: our Sun. Each planet […]
Move over, Tattooine, and instead feast your eyes on GW Orionis.
From exoplanets to supermassive black holes to the first stars and galaxies, Webb will show us the Universe as we’ve never seen it before.
I’m not saying it’s not aliens, but it’s not aliens. When it comes to life in the Universe, we still have no definitive answer to the biggest question of all, “are […]
Galaxies can have regions both hotter and colder than the background radiation of the Universe. When we talk about the depths of space, we get this picture in our heads […]