All scientific theories, at some level, are wrong. That’s why consensus is so vital. There are two important and common words that, when used scientifically, have a very different meaning than […]
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A single lifetime is more than enough to take you to the limits of the Universe. Right now, there are only three things limiting how far our spacecrafts can take […]
The Big Bang is our accepted origin of the Universe. But is there another possibility? Since the mid-1960s and the discovery of the Cosmic Microwave Background, the Big Bang has […]
Don’t miss the summer’s greatest natural sights of all. Some of the natural highlights of our night sky are easy to overlook. Every year, you’ll hear about some of the brightest, […]
She’s not a scientist, an expert, or even an adult. But she’s got one good lesson to teach us all. Like most people on Earth, Greta Thunberg is not a climate […]
Our Universe is 13.8 billion years old, and our Sun formed about 2/3rds of the way through. Here’s what came before it. When it comes to the great cosmic question of […]
If dark energy were stronger or weaker, everything would be pretty much the same. And that’s a puzzle. After the Big Bang, the Universe was full of matter and radiation. It […]
When we place the known objects in the Solar System in order, four inner, rocky worlds and four, outer, giant worlds stand out. Traditionally, these were defined as planets. Will […]
In the aftermath of everything we’ve learned about what’s in the Universe, we can make much better estimates of how many alien civilizations are out there. In 1961, scientist Frank Drake […]
It isn’t the rapture or some crazy prophesy, but science, that tells us when and how the end will come. “The surface of the Earth is the shore of the cosmic […]
Beyond climate change, ice ages or even the death of our Sun, the cosmic dance continues for ages. Here’s how it will truly end. “The way to love anything is to […]
That our atoms come from stars? You’ve got to think bigger than that! “The older people that one admires seem to be fearless. They go right out into the world. It’s […]
If black holes suck everything in and nothing can get out, what does that mean for dark matter? “A single day is enough to make us a little larger or, another […]
With current technology, things might take generations. But that could be greatly reduced with a little help. “Oh, yes — I know you. There was a time you looked at the stars and […]
How the biggest NASA mission of the decade will solve some of the Universe’s greatest mysteries. “Now the world has gone to bed,Darkness won’t engulf my head,I can see by […]
It’s a wonderful potential technology for going interstellar. But in your lifetime? Don’t hold your breath. “Greatness is not in where we stand, but in what direction we are moving. We […]
When everything passes away, what will be left? “End? No, the journey doesn’t end here. Death is just another path, one that we all must take. The grey rain-curtain of […]
Can failed stars, or stellar corpses, give light to the Universe once again? “A single tiny light creates a space where darkness cannot exist. The light vanquishes the darkness. Try […]
The Universe was 99.999999% Hydrogen and Helium after the Big Bang. Billions of years later, there’s a new contender in town. “When it comes to atoms, language can be used […]
Lessons from the Universe whenever a light goes out. “End? No, the journey doesn’t end here. Death is just another path, one that we all must take. The grey rain-curtain […]
The future of stars like our own, in a story only pictures can tell. “I lie on the floor, washed by nothing and hanging on. I cry at night. I […]
While 2015 gives us all a fresh start, we can consider the Big Bang until today to be “One Universe Year.” What comes next? “And now we welcome the new […]
And why do some of them appear to be right here in our own galaxy, which formed much later? Image credit: DSS, of SMSS J031300.36–670839.3, candidate for “oldest star.” “Let […]
What the “independent tests” really teach us, if we’re willing to look carefully. Image credit: cold fusion hoax by Juan-Louis Naudin, 2003. “There’s a mark born every minute, and one […]
Is theage of climate change deniers over? Let’s hope so. Because we’ve got serious work to do. If we no longer need to debate whether the Earth is flat, then […]
The brightest “planetary nebula” is actually a Sun-like star in its final death throes! “When he shall die,Take him and cut him out in little stars,And he will make the face […]
It’s the greatest cosmic masquerade of all: a star that fakes its own death! “If you are a dreamer come inIf you are a dreamer a wisher a liarA hoper a […]
Hydrogen was the first element ever created, but there’s less of it now than there ever was. “If the human condition were the periodic table, maybe love would be hydrogen at […]
From how they’re born to how they live to the end of their life cycle, this story is common to them all. “Man alone is born crying, lives complaining, and dies […]
How was Earth’s most well-known precious metal made? “Don’t gain the world and lose your soul;wisdom is better than silver or gold.” –Bob Marley Throughout all of recorded human history, there’s […]