Satellites

47 articles with this tag

How NASA's Deep Space Network Talks to Spacecraft Science

How NASA's Deep Space Network Talks to Spacecraft

NASA's Deep Space Network is a trio of giant antenna complexes that keep Earth connected to every interplanetary mission, from Mars rovers to Voyager...

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How Gravitational Lensing Works—the Universe's Telescope Science

How Gravitational Lensing Works—the Universe's Telescope

Gravitational lensing bends light from distant objects around massive cosmic structures, acting as nature's own telescope. This guide explains the thr...

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How LiDAR Reveals Lost Cities Hidden Under Jungles Science

How LiDAR Reveals Lost Cities Hidden Under Jungles

LiDAR technology fires millions of laser pulses from aircraft to digitally strip away dense vegetation, exposing ancient ruins invisible from the grou...

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How Global Temperature Records Are Measured and Verified Science

How Global Temperature Records Are Measured and Verified

From weather stations and ocean buoys to satellites and statistical algorithms, tracking Earth's temperature is a complex, multi-layered process invol...

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How the Rubin Observatory Will Map the Entire Sky Science

How the Rubin Observatory Will Map the Entire Sky

The Vera C. Rubin Observatory in Chile uses the world's largest digital camera to photograph the entire visible sky every three nights, hunting astero...

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How NASA's SLS Mega-Rocket Works—and Why It Matters Science

How NASA's SLS Mega-Rocket Works—and Why It Matters

NASA's Space Launch System is the most powerful rocket ever built for crewed spaceflight, designed to send astronauts beyond low Earth orbit for the f...

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How NASA's Orion Spacecraft Works—and Why It Matters Technology

How NASA's Orion Spacecraft Works—and Why It Matters

NASA's Orion capsule is the first crewed vehicle designed for deep space since Apollo. Here is how its heat shield, life support, and navigation syste...

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How Solar Flares Work—and Why They Threaten Earth Science

How Solar Flares Work—and Why They Threaten Earth

Solar flares are sudden eruptions of magnetic energy on the Sun that can disable satellites, knock out power grids, and disrupt GPS. Here's how they f...

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Artemis II: NASA's First Crewed Moon Mission in 53 Years Science

Artemis II: NASA's First Crewed Moon Mission in 53 Years

NASA is counting down to the April 1 launch of Artemis II, sending four astronauts around the Moon aboard the Orion spacecraft — the first crewed luna...

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How Helioseismology Works—Hearing Inside the Sun Science

How Helioseismology Works—Hearing Inside the Sun

Helioseismology uses millions of sound waves rippling through the Sun to map its hidden interior, much like an ultrasound scans the human body. The te...

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What Are Super-Earths and Why Scientists Hunt Them Science

What Are Super-Earths and Why Scientists Hunt Them

Super-Earths are exoplanets up to ten times Earth's mass that dominate our galaxy yet have no counterpart in our solar system. Scientists study them f...

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What Is Earth's Albedo and Why It Keeps Dropping Science

What Is Earth's Albedo and Why It Keeps Dropping

Earth's albedo — the fraction of sunlight our planet reflects back to space — is declining to record lows, accelerating global warming through powerfu...

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