Nina Sen

Fascinating video shows how using opposing ultrasonic speakers can levitate and hold droplets of water against gravity.

A newly discovered species of leaf beetle uses its own feces to modify shelters in leaves.

In this cool video, professor Abigail Marsh explains how multiple pathways can trigger a response to fear.

Do these look like tentacles? Synthetic biology works with unnatural molecules and compounds to make tools familiar to natural biology.

Australia’s Mount Kaputar is home to bright, pink slugs that come out on rainy nights.

A perfect mirror has specular reflection, meaning it reflects all light in a single direction equal to what it receives.

Night sky photographer Scott McGuire snapped this stunning photo of the space station full moon over Half Dome at Yosemite National Park.

Once a crab is wrenched from its shell, they all simultaneously move into larger shells.

Sensors monitor how much a person tosses and turns, duration of sleep, sound and temperature.

Night sky photographer Tunc Tezel took this breathtaking photo from the elusive 'window' to the stars.

The primary purpose of this mission was to further progress toward the goal of landing men on the Moon.

Mars also has about 10 percent of the mass and 15 percent of the volume of Earth.

The Hubble Telescope is called a Cassegrain reflector telescope.

Tardigrades or Water bears are the only creatures that can survive the extreme conditions in the vacuum of outer space.

Many have tied the existence of a rogue planet with Eris, a dwarf planet found beyond Neptune.

Antarctica fits the definition of a desert because it has an annual precipitation of less than 10 inches and is devoid of vegetation.

Aeronautical engineers created the V-22, an aircraft that could combine the speed and range of a turboprop airplane with the vertical agility of a helicopter.

Most theories say that asteroids are bits and pieces left over from the formation of the solar system.

In the 1800s, astronomers glimpsed what they took to be canals on the Martian surface.

Scientists dubbed the synthetic creature a medusoid.

Swimming floats add buoyancy to the standard National Health Service-issued wheelchair.

The sun is at an average distance of about 93,000,000 miles (150 million kilometers) away from Earth.

Modern hot- air balloons lifted off in 1783 with a demonstration in front of King Louis XVI, Marie Antoinette, and a crowd of 130,000 in Annonay, France.