Satellites

Satellite DNA consists of very large arrays of tandemly repeating, non-coding DNA. Satellite DNA is the main component of functional centromeres, and form the main structural constituent of heterochromatin.The name "satellite DNA" refers to the phenomenon that repetitions of a short DNA sequence tend to produce a different frequency of the bases adenine, cytosine, guanine, and thymine, and thus have a different density from bulk DNA such that they form a second or "satellite" band(s) when genomic DNA is separated along a cesium chloride density gradient using buoyant density centrifugation.

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ERS-2 spotted by other satellites during descent

Russian plans for space-based nuclear weapon to target satellites spark concern in US Congress

Satellites unveil the size and nature of the world's coral reefs

Researchers use satellites to analyze global reef biodiversity

China to launch 26,000 satellites, vying with U.S. for space power

We Need Cybersecurity in Space to Protect Satellites

Iran launches 3 satellites on Simorgh rocket's 1st successful orbital launch

Iran launches three satellites into space as tensions rise

Satellites watch Iceland volcano spew lava towards fishing village (photo)

The doomed US moon lander is on a collision course with Earth and will be destroyed to protect other satellites

Starlink close encounters decrease despite ever-growing number of satellites

Spacex sends first text messages via its newly launched direct-to-cell satellites.

How Astronomers Are Saving Astronomy From Satellites — For Now. Even the most powerful telescopes are in peril as orbits above Earth fill with thousands of new satellites. But scientists aren’t ready to give up the night sky.

How Astronomers Are Saving Astronomy From Satellites — For Now

Space Development Agency confirms Rocket Lab will produce 18 satellites for U.S. military network

Satellites reveal 75% of world's industrial fishing vessels are 'hidden'

2 years ago, the UN banned the usage of mercury propellant after it became known that Apollo Fusion was planning to use mercury propellant to launch satellites into space

Rocket Lab wins $515 million contract to build 18 satellites for U.S. government agency

Seeing through the DARC, deep into space: AUKUS develops deep space advanced radar capability as response to threat of attacks on satellites and other equipment

Millions of Satellites Could Have a Profound Effect on the Earth’s Ionosphere