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Why so many volcanoes seem to be erupting right now
This volcanic activity is not what it seems...
By Mark Kaufman
![The Etna volcano erupting in Italy on Nov. 12, 2023.](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/01AoXECVJOzX9pZqApTPzVL/hero-image.fill.size_220x133.v1699974969.jpg)
![The Etna volcano erupting in Italy on Nov. 12, 2023.](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/01AoXECVJOzX9pZqApTPzVL/hero-image.fill.size_220x220.v1699974969.jpg)
If a scary asteroid will actually strike Earth, here's how you'll know
"It becomes a national emergency event."
By Mark Kaufman
![a conception of an asteroid hitting Earth](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/026ZtimoxCPeUixCbwTYcQK/hero-image.fill.size_220x133.v1623335565.jpg)
![a conception of an asteroid hitting Earth](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/026ZtimoxCPeUixCbwTYcQK/hero-image.fill.size_220x220.v1623335565.jpg)
There's a black hole pointed at Earth. You're not in danger.
This might sound scary, but it's not.
By Mark Kaufman
![a black hole emitting jets of energy into space](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/00hug15FQGUWX1eOnaa0Ujk/hero-image.fill.size_220x133.v1680017876.jpg)
![a black hole emitting jets of energy into space](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/00hug15FQGUWX1eOnaa0Ujk/hero-image.fill.size_220x220.v1680017876.jpg)
How likely is a terrible asteroid impact in your lifetime?
Astronomers find hundreds of near-Earth asteroids every year.
By Mark Kaufman
![An artist's conception of a near-Earth asteroid, or NEA.](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/04Tqc3V3fEbyfTQMw7zRQp7/hero-image.fill.size_220x133.v1685632256.jpg)
![An artist's conception of a near-Earth asteroid, or NEA.](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/04Tqc3V3fEbyfTQMw7zRQp7/hero-image.fill.size_220x220.v1685632256.jpg)
Large spiders are rapidly spreading in the U.S. They're not after you.
It's time we become friendly neighbors.
By Mark Kaufman
![A Joro spider hanging from its large web. Female Joros are much larger and flashier in color than males.](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/06Qhvm5kefqOaVN6w1fCbpP/hero-image.fill.size_220x133.v1684962855.jpg)
![A Joro spider hanging from its large web. Female Joros are much larger and flashier in color than males.](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/06Qhvm5kefqOaVN6w1fCbpP/hero-image.fill.size_220x220.v1684962855.jpg)