About 1,000 years ago, a massive star exploded at the end of its life cycle. What remains is the Crab Nebula, a glowing cloud of gas and dust.
It spins 30 times per second and generates as much
One of the earlier dinosaurs to appear on Earth was Coelophysis. It was a small, but skilled hunter that lived during the Late Triassic Period over 200 million years ago.
indicated a long stride, able to run up to 25 miles per
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Take a deep breath and exhale slowly. Your body just released carbon dioxide, a colorless gas that’s essential to life on Earth.
atom + 2 oxygen atoms) Unit of Measure: PPM (parts per
Take a deep breath and exhale slowly. Your body just released carbon dioxide, a colorless gas that’s essential to life on Earth.
atom + 2 oxygen atoms) Unit of Measure: PPM (parts per
The advantages and challenges of aerial robot groups.
It has a max speed of about six meters per second.
Various methods and techniques on surveying and studying mussels.
particularly well for large mussels and can estimate density per
On the dry grasslands of eastern Africa, the Thomson’s gazelle grazes in the tall grass. Suddenly, it hears a noise and raises it head. The gazelle is completely still until it notices a lion.
Thomson’s gazelle can run up to 50 miles (80 kilometers) per
Most mammals that live on land use their legs to get around. But the white-handed gibbon relies mostly on its arms. Using its long arms and strong fingers, it swings through trees with grace and sp…
through the trees at speeds up to 35 miles (56 km) per
On the dry grasslands of eastern Africa, the Thomson’s gazelle grazes in the tall grass. Suddenly, it hears a noise and raises it head. The gazelle is completely still until it notices a lion.
Thomson’s gazelle can run up to 50 miles (80 kilometers) per
