Space Exploration

Space Exploration

T-Minus
Freethink's weekly countdown of the biggest space news, featuring a stranded space factory, Jeff Bezos' new moon lander, and more.
A group of planets in space with a sun in the background.
The TRAPPIST-1 system is a treasure trove of possibilities and questions. Observations by JWST have just begun.
venus earth comparison
Out of the four rocky planets in our Solar System, only Earth presently has plate tectonics. But billions of years ago, Venus had them, too.
An image of a rocket taking off.
See the 3 biggest space stories from October 16-22, 2023.
An image of the Martian surface.
Sophisticated rovers have found the conditions for Martian life, as well as the building blocks of life, but never life itself. AI can help.
An image showcasing the captivating shape of space featuring a mesmerizing red and blue nebula.
Einstein's theory of general relativity introduced the concept of space having a shape. So, what is the shape of space?
A little alien talking on a telephone.
"If we find just one other example of biology out there, then life is not an accident."
aliens
A true scientific view of if, where, and when extraterrestrial life exists is within our grasp thanks to biosignatures and technosignatures.
Keywords: Joyce Neighbors

Description: A black and white photo featuring Joyce Neighbors standing proudly next to a rocket.
A woman’s name would undermine the credibility of the mission. Names of former Nazis, however, were no problem.
borexino
Back during the hot Big Bang, it wasn't just charged particles and photons that were created, but also neutrinos. Where are they now?
A photo of an astronaut on the moon and a signed letter from Apollo 11.
Considering the astronomical occupational risks, life insurance was prohibitively expensive for the first NASA astronauts.
An artist's impression of a planet collision.
The Universe, although violent, is filled with creation events following destructive ones. 1850 light-years away, both types are unfolding.
JuMBOs planet mass orion nebula JWST nircam
In the largest star-forming region close to Earth, JWST found hundreds of planetary-mass objects. How do these free-floating planets form?
hydrothermal field
With such a vast Universe and raw ingredients that seem to be everywhere, could it really be possible that humanity is truly alone?
warp drive analogy
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.
LL Orionis bow shock nebula
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?
An artist's rendering of an alien planet and a red star.
Within the next few decades, we may well have hard evidence for the existence of alien life on worlds light-years distant from Earth.
Earth-like exoplanet
Some fascinating observations of K2-18b have come along with horrendous, speculative communications. There's no evidence for oceans or life.
mars oceans
Chemical changes inside Mars' core caused it to lose its magnetic field. This, in turn, caused it to lose its oceans. But how?
An artist's impression of a group of planets in space detected via the doppler method.
Finding a tiny planet around bright stars dozens or hundreds of light-years from Earth is extremely difficult.
Nasa's nasa spacecraft observing annular eclipse.
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.
spiral galaxies MIRI PHANGS JWST
How does star-formation, occurring in small regions within galaxies, affect the entire host galaxy that contains it? JWST holds the answers.
Two starfish on the beach at sunset.
Scientists may have detected the somewhat smelly chemical dimethyl sulfide on a planet 120 light-years from Earth.
SN 1987a JWST
In 1987, the closest supernova directly observed in nearly 400 years occurred. Will a pulsar arise from those ashes? JWST offers clues.
An artist's impression of an asteroid approaching the earth.
The asteroid is expected to come within 140,000 miles of Earth — well inside the moon’s orbit.
universe bulk volume brane dimension
Three fundamental forces matter inside an atom, but gravity is mind-bogglingly weak on those scales. Could extra dimensions explain why?
A portrait of a man in a red coat, hinting at Copernicanism through symbolism.
Looking at our planet with post-Copernican eyes has the power to change how we relate to it and each other.
stars omega centauri globular cluster
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.
ring nebula hubble jwst nircam miri
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.