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It’s hard to get your head around the sheer size of objects in space, but take 2 minutes and give it a try!

Earth’s ingredients ‘pretty normal,’ say astronomers

Astronomers have discovered that the basic building blocks of some planetary systems are very similar to Earth’s elements, helpful information in the search for truly Earth-like planets in other solar systems.

We’re guinea pigs in global microplastic experiment

Microplastics are everywhere – in our water, soil, and even the air we breathe. The consequences of this exposure on human health is unknown.

What is pareidolia?

Seeing a dragon in a patch of clouds, or a face in the moon, are examples of what’s called pareidolia. Look here for photos to test your own ability to see things that aren’t there.

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Curiosity finds strange object on the surface of Mars

The Mars Curiosity rover captured images of this strange object on the planet’s surface on Monday. What is it? NASA scientists have figured it out.

Why so few galaxies in this distant region of space?

Galaxies aren’t evenly distributed throughout the universe. But even so, this large region of space has far fewer galaxies than astronomers expected.

We promise you won’t be eaten by a megalodon

So go ahead and get scared at the new movie “The Meg,” but don’t worry. Scientists have officially debunked the myth that megalodon sharks still exist.

Today in science: A moon for Mars

American astronomer Asaph Hall discovered Phobos, 1 of the 2 known Martian moons, on this date in 1877.

Dust, smoke and North America’s sunsets

Many in North America are seeing layered sunsets, caused by smoke. EarthSky community photos from various places on the continent, plus a heads up … watch for blue-colored moons or suns!

Carbon monoxide from California wildfires drifts east

What happens in California doesn’t stay in California. This animation, made from satellite data, shows carbon monoxide from the state’s massive wildfires drifting eastward all the way across the U.S.

Bam! Meteorite bombardment created Earth’s oldest rocks

A new computer modeling study shows that – some 4 billion years ago – a barrage of incoming debris from space likely formed what we know today as Earth’s oldest rocks.

Happy Chinese Valentine’s Day, from Vega

One of the prettiest stories in all skylore surrounds this star. “On the 7th night of the 7th moon …” The legend sets the date of Chinese Valentine’s Day – the Qixi Festival – this year on August 17.

What’s causing Florida’s algae crisis? 5 questions answered

Red tides and a blue-green algae outbreak are fouling hundreds of miles of coast, killing fish and driving tourists from beaches. Some causes are natural, but human actions also play a role.