SpaceX's Starship rocket exploded again. Elon Musk's Mars dreams remain grounded, for now.

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SpaceX's Starship-Super Heavy rocket ready to launch.
Screenshot of SpaceX's Starship-Super Heavy rocket on launch pad. This photo was taken from the SpaceX livestream on X.

SpaceX

How to watch SpaceX launch its Starship mega-rocket live

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SpaceX's Starship-Super Heavy rocket ready to launch.
Screenshot of SpaceX's Starship-Super Heavy rocket on launch pad. This photo was taken from the SpaceX livestream on X.

SpaceX

Sailors playing heavy metal to scare killer whales may be putting a target on their backs by telling the orcas exactly where to find them

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An orca
The female orca was observed caring for a baby pilot whale.

Getty Images

Scientists discovered a field of deep-sea hot springs after following a trail of crabs like breadcrumbs on the ocean floor

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A trail of squat lobsters, small white crabs, on the ocean floor
"Leading us like breadcrumbs..." A trail of squat lobsters helped researchers locate previously unknown hydrothermal vents.

Schmidt Ocean Institute

Starship's first liftoff toward space created the equivalent of a volcanic eruption in the launchpad, physicist finds

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The SpaceX Starship lifts off from the launchpad during a flight test from Starbase in Boca Chica, Texas, on April 20, 2023.
The SpaceX Starship lifts off from the launchpad during a flight test from Starbase in Boca Chica, Texas in April.

PATRICK T. FALLON/AFP via Getty Images

There's no Christmas tree shortage this year despite Canada's record wildfire season, 2 experts say

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Two people in masks touch a Noble fir Christmas tree among many other trees
Noble firs are grown throughout the Pacific Northwest.

Mel Melcon/Los Angeles Times via Getty Images

Mars is about to disappear for 2 weeks. Here's why.

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Mars
The Mars Orbiter Camera on NASA's Mars Global Surveyor spacecraft captured this high-definition image of Mars.

NASA/JPL

10 rattiest cities in America in 2023, according to pest control experts

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A rat superimposed over an American flag.
Each year, Orkin pests ranks the 50 rattiest cities in America.

[Flag] Glasshouse Images/Getty Images; [rat] Cavan Images/Get

The Leonid meteor shower is peaking tonight, creating up to 15 shooting stars per hour. Here's how to watch.

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A stock image shows a green fireball streaking a starry sky during the Leonid meteor shower
A meteor streaks the night sky above Payson, Arizona during the Leonids meteor shower.

iStock / Getty Images Plus

NASA scientists think some planets are shrinking because powerful radiation from their cores is pushing away their atmospheres

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illustration colorful planets lined up in a long trail receding into distant space
An artist's concept shows the variety of rocky, Earth-like planets that might exist across the universe.

NASA/JPL-Caltech/R. Hurt (SSC-Caltech)

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