With sodium-sensitive eyes, we’d see it every new Moon. With no detectable gases, the Moon appears to be atmosphere-free. The Moon as seen from a view above the majority of Earth’s […]
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“If we find just one other example of biology out there, then life is not an accident.”
The universe is filled with unlikely events, but is also full of ways to fool ourselves.
Shortly after planet Earth formed, life took a permanent hold on our surface. But just how common is such an outcome?
The Universe is supposed to be the same everywhere and in all directions. So what’s that giant “cold spot” doing out there?
Compared to Earth, Mars is small, cold, dry, and lifeless. But 3.4 billion years ago, a killer asteroid caused a Martian megatsunami.
As particles travel through the Universe, there’s a speed limit to how fast they’re allowed to go. No, not the speed of light: below it.
At least one of Earth’s creatures is able to survive the vacuum of space.
If life is common in the Universe, then where is everybody? Known as the Fermi Paradox, a new project may help solve the riddle.
The zero-point energy of empty space is not zero. Even with all the physics we know, we have no idea how to calculate what it ought to be.
Red dwarf stars were supposed to be inhospitable. But TOI-700, now with at least two potentially habitable worlds, is quite the exception.
The past ~4 billion years have been an incredibly successful, unbroken run for life on Earth. The future won’t be nearly so bright.
Ingenuity is remarkable. But these 5 exploration ideas are revolutionary. Telescopes are our initial tools for revealing and studying foreign worlds. Hubble images of Mars, particularly around the regions with […]
Some ozone experts seriously doubt the findings.
We once thought the Moon was completely airless, but it turns out it has an atmosphere, after all. Even wilder: It has a tail of its own.
Named M51-ULS-1b, it’s certainly a curious astronomical event. But the evidence is far too weak to conclude “planet.”
If you want to know what the Universe is like, you have to look at it in the right way. Only by observing it can we know what the Universe is […]
Gamma-ray bursts are among the most energetic cosmic events of all. On October 9, 2022, a remarkable one occurred: the brightest ever seen.
One book will gather all topics on the search for life in the Cosmos.
The boiling new world, which zips around its star at ultraclose range, is among the lightest exoplanets found to date.
Jupiter’s mysterious auroral events are caused by vibrating waves of plasma.
We just observed the first ‘lunar formation’ in an exoplanetary system. This one image, above, is the first to show moons actively forming around a planet. This colourful image shows […]
When we started imaging the Universe with Hubble, every star had four “spikes” coming from it. Here’s why Webb will have more.
Professional astronomy images are the gold standard. But this Large Magellanic Cloud composite is the amateur community’s best image ever.
Our views from the red planet’s surface are more spectacular than ever. Ever since the earliest spaceflight, humanity has reached for Mars. This photo composite shows Meande Ring, a river on […]
Our research on a Martian meteorite provides new clues about early surface conditions on the red planet.
Infrared, visible, and ultraviolet combine to show us Jupiter’s features as never before. The largest planet in our Solar System, Jupiter, is our own ‘failed star.’ The best evidence-based classification scheme […]
In the spirit of the 1969 moon landing, we now have a golden opportunity to pursue “nondisruptive” creative solutions.