The idea of gravitational redshift crossed Einstein’s mind years before General Relativity was complete. Here’s why it had to be there.
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Philosophers and scientists spent millennia arguing about the nature of light. It turned out to be stranger than anyone imagined.
If you truly want to understand modern astrophysics, knowing how to read this graph is essential.
Want some crazy space phenomena? You don’t have to leave the neighborhood for it.
A 5,300-year-old mummy teaches us the global history of tattoos.
The unconventional method could help astronomers better track meteorites that fall during the daytime.
The most massive nearby stars could be the seeds our supermassive black holes need. The problem with the Universe, as we see it today, is that we only get a snapshot […]
Was there ever life on Mars? Is there life on Mars now? Did it originate there or here, on Earth? All possibilities are fascinating.
Scientists find routes using arches of chaos that can lead to much faster space travel.
Both made monumental contributions that were far ahead of their time. It’s hard to believe, but the idea that the Universe was dominated not by normal matter but rather by dark […]
A new survey, the DESI Legacy Imaging Survey, has found more lenses than all others put together. One of Einstein’s most revolutionary predictions is that mass bends light. During a […]
These bizarre mollusks have the ability to regenerate their bodies and to absorb other organisms’ attributes.
New mathematics have shown that lines of energy can be used to describe the universe.
As viewed by the MeerKAT telescope, this radio view of the Milky Way blows away every other way we’ve ever seen our home galaxy.
Portraiture is one of the most intimate genres in all of painting, and it has reinvented itself many times across European history.
More than any other of Einstein’s equations, E = mc² is the most recognizable to people. But what does it all mean?
The lush biodiversity of South America’s rainforests is rooted in one of the most cataclysmic events that ever struck Earth.
The upcoming launch of the James Webb Space Telescope is the event of a lifetime.
From the right place at the right time, it’s a sight unlike any you’ll find on Earth. In our Solar System, any planet with moons has a chance for a solar […]
Nuclear fusion has long been seen as the future of energy. As the NIF now passes the breakeven point, how close are we to our ultimate goal?
In a joint briefing at the 101st American Meteorological Society Annual Meeting, NASA and NOAA revealed 2020’s scorching climate data.
Move over, IC 1101. You may be impressively large, but you never stood a chance against the largest known galaxy: Alcyoneus.
A unique star system where exoplanets orbit their star backwards located by researchers.
The last 70 years have taken us farther than the previous 70,000. But can we accomplish more than creating a record saying, “We were here?”
Every observation out into deep space is also a look back in time. Whenever you observe an object, you aren’t viewing it in its present state. When one of Jupiter’s moons […]
The brightest object in the night sky, our Moon is an unmistakable sight. The brightest object in the night sky, our Moon is an unmistakable sight. The Moon, in a […]
It’s the largest black hole merger ever observed by scientists.
Researchers hypothesize that these exoplanets could support the development of alien life.
If we succeed in contacting them, will that seal humanity’s doom? One of the most wondrous questions of all concerns our place in the Universe. After 13.8 billion years of […]
If everything eventually dies and decays, is there a way to prolong the inevitable? Our Universe, as it exists today, puts us in an incredibly privileged position. Had we come […]