Space

Space

moon base
From astrobiology to geology, a Moon base could serve as a laboratory unlike anything on Earth.
It's rare that one single image packs so much beauty and science simultaneously. This Hubble view of a nearby star-forming region has both.
cosmic ray blazar
Supermassive black holes at the centers of galaxies gobble up whatever matter ventures too close, becoming active. Here's how they work.
gaia black hole
The ESA's Gaia mission just broke the record for closest black hole by over 1,000 light-years. Is there an even closer one out there?
The largest hazardous asteroid found in the last 8 years showcases a little-known class of planet-killers. And we're woefully unprepared.
In 1995, Hubble peered at the Pillars of Creation, forever changing our view. Now in 2022, JWST completes the star-forming puzzle.
The stars circle each other every 51 minutes, confirming a decades-old prediction.
how much dark matter
The Universe gravitates so that normal matter and General Relativity alone can't explain it. Here's why dark matter beats modified gravity.
Unfortunately, the Lunar Ark project is an idea more at home in science fiction than science fact.
1.9 billion years ago, a star's explosive death created a black hole. Its light just arrived at Earth. But did it set a cosmic record?
Over the past 50 years, 27 leap seconds have been added to our time.
It's the very closest stars to us that hold the key to unlocking the possibilities for life in star systems all throughout the Universe.
universe
The Big Bang is commonly misunderstood, warping our understanding about the Universe's size and shape.
The James Webb Space Telescope viewed Neptune, our Solar System's final planet, for the first time. Here's what we saw, and what it means.
When people pick the greatest scientist of all-time, Newton and Einstein always come up. Perhaps they should name Johannes Kepler, instead.
Recent research suggests that Earth’s magnetic field bounced back just as complex life was starting to emerge on our planet.
how big is the universe
You would think that with all our technology, like the James Webb Space Telescope, we would know how big the Universe is. But we don't.
central black hole jet
Black holes aren't just the densest masses in the Universe, but they also spin the fastest of all massive objects. Here's why it must be so.
On the morning of June 30, 1908, an explosion of more than 10 megatons occurred above the sparsely populated Siberian Taiga. What caused the so-called Tunguska event?
aliens
One book will gather all topics on the search for life in the Cosmos.
An astrophysicist explains these shortcuts through space-time.
zodiac ptolemy harmonia macrocosmica
No planet enters retrograde more frequently than Mercury, which does so 3-4 times each year. Here’s the scientific explanation for why.
combustion
Oxygen isn't strictly necessary for combustion, but it is ideal. Any advanced (alien) civilization probably uses oxygen to burn things.
existential physics
In special relativity, the statement that two events happened at the same time is meaningless.