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Space Exploration
Einstein's theory of general relativity introduced the concept of space having a shape. So, what is the shape of space?
"If we find just one other example of biology out there, then life is not an accident."
A true scientific view of if, where, and when extraterrestrial life exists is within our grasp thanks to biosignatures and technosignatures.
A woman’s name would undermine the credibility of the mission. Names of former Nazis, however, were no problem.
Back during the hot Big Bang, it wasn't just charged particles and photons that were created, but also neutrinos. Where are they now?
Considering the astronomical occupational risks, life insurance was prohibitively expensive for the first NASA astronauts.
6mins
Humanity is a type 0 civilization. Here’s what types 1, 2, and 3 look like, according to physicist Michio Kaku.
The Universe, although violent, is filled with creation events following destructive ones. 1850 light-years away, both types are unfolding.
In the largest star-forming region close to Earth, JWST found hundreds of planetary-mass objects. How do these free-floating planets form?
With such a vast Universe and raw ingredients that seem to be everywhere, could it really be possible that humanity is truly alone?
In the quest to measure how antimatter falls, the possibility that it fell "up" provided hope for warp drive. Here's how it all fell apart.
12mins
There are a few theories as to why we’ve never found other intelligent life in our Universe. Physicist Brian Cox walks us through them.
The laws of physics don't prefer matter over antimatter. So how can we be certain that distant stars & galaxies aren't made of antimatter?
Within the next few decades, we may well have hard evidence for the existence of alien life on worlds light-years distant from Earth.
Some fascinating observations of K2-18b have come along with horrendous, speculative communications. There's no evidence for oceans or life.
Chemical changes inside Mars' core caused it to lose its magnetic field. This, in turn, caused it to lose its oceans. But how?
Finding a tiny planet around bright stars dozens or hundreds of light-years from Earth is extremely difficult.
An annular eclipse is coming to Earth on October 14, 2023. Six months later, a total solar eclipse is headed our way. Here's the reason why.
How does star-formation, occurring in small regions within galaxies, affect the entire host galaxy that contains it? JWST holds the answers.
Scientists may have detected the somewhat smelly chemical dimethyl sulfide on a planet 120 light-years from Earth.
6mins
A physicist discusses the boundaries of reality and experimentation.
In 1987, the closest supernova directly observed in nearly 400 years occurred. Will a pulsar arise from those ashes? JWST offers clues.
The asteroid is expected to come within 140,000 miles of Earth — well inside the moon’s orbit.
Three fundamental forces matter inside an atom, but gravity is mind-bogglingly weak on those scales. Could extra dimensions explain why?
Looking at our planet with post-Copernican eyes has the power to change how we relate to it and each other.
With ~400 billion stars in the Milky Way and 6-20 trillion galaxies overall, that makes for a lot of stars. But not as many as you'd think.
The "Ring Nebula," known for almost 250 years, is so much more than a Ring. With JWST's capabilities, we're seeing more than ever before.
By looking down, scientists are looking back in time.
The Universe isn't just expanding, the expansion is also accelerating. If that's true, how will the Milky Way and Andromeda eventually merge?
The first observational evidence showing the Universe is expanding is 100 years old now: in 2023. Here's the story of its 100th anniversary.