For northern hemisphere skywatchers, it might just be the century’s best comet so far. Every once in a while, large, icy objects pass through the inner Solar System. C/2014 Q2 (Lovejoy) […]
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When we look out at the Universe, even with Hubble, we’re only seeing the closest, biggest, brightest galaxies. Here’s where the rest are.
We’re Earth’s first intelligent, technologically advanced civilization. But maybe not the last. For most of our planet’s history, life in some form has existed on our world. Planet Earth formed some […]
Don’t miss the summer’s greatest natural sights of all. Some of the natural highlights of our night sky are easy to overlook. Every year, you’ll hear about some of the brightest, […]
At four million solar masses, the Milky Way’s supermassive black hole is quite small for a galaxy its size. Did we lose the original?
A famous thought experiment from the 1970s is more relevant today than ever before.
A recent study tested how well the fungi species Cladosporium sphaerospermum blocked cosmic radiation aboard the International Space Station.
If you want to find life in the Universe, this is how you do it. When it comes to uncovering the ultimate truths about reality, we can only reap what we […]
Probably not. Even though we’re still investigating the origin of life, the evidence suggests that cells came much later.
When we look at the night sky, we may see junk instead of stars.
This year’s June solstice coincides with a new Moon and an annular solar eclipse. Here’s how rare it truly is. As the Earth orbits the Sun, it rotates on its axis. […]
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 […]
The spacecraft is set to come closer to the star than any other Sun-facing camera before it.
They say that seein’ is believin’. But everything we see has to have a scientific explanation. When you look at the Sun on a day where there’s a clear sky, […]
An unprecedented number of new satellites threatens the night sky as we know it. Will we act in time to save it?
A unique exoplanet without clouds or haze was found by astrophysicists from Harvard and Smithsonian.
A new study sheds light on the final supernovae of the Universe.
Solar geoengineering ideas could weaken storms in both hemispheres, scientists find.
What was the universe like one-trillionth of a second after the Big Bang? Science has an answer.
The Hubble Space Telescope, 32 years after its launch, broke the all-time record for most distant star. It won’t do better.
Using modern tools, a team of astronomers uses celestial sleuthing to figure out when Vermeer painted his masterpiece “View of Delft.”
The raw ingredients just weren’t there. Thankfully, their predecessors were. Here on Earth, our planet practically overflows with life. After more than 4 billion years, life has spread to practically […]
For the first time, it was discovered that nonphotosynthetic bacteria have a circadian clock.
The bizarre discovery could pave the way for advances in regenerative medicine for humans.
How (not) to end up in the ash heap of history.
A supernova exploded near Earth about 2.5 million years ago, possibly causing an extinction event.
There are three factors all competing to determine the fate of the Earth, and the one that’s winning now won’t win in the end. If you could measure the average distance […]
Take a journey through the maze of interpretations of one of the most famous paintings in history.
When one group says “A” and another group says “B,” consider that everyone might be wrong. One of the biggest enemies of scientific truth is the setup of a false dichotomy. […]
The Younger Dryas impact hypothesis argues that a comet strike caused major changes to climate and human cultures on Earth about 13,000 years ago.