One of the Brightest Stars in the Sky is Actually a Satellite

The bright streaks drawing an arc across the night sky are caused by the satellite BlueWalker 3. The prototype satellite is brighter than most stars. Image Credit: Ilse Plauchu-Frayn

Back in the 70s, kids used to look up at the summer sky and try to be the first one to shout, “Satellite!” That seems like a relic from the past now, alongside Polaroid cameras and astronauts on the Moon. These days, it’s rare to spend any amount of time looking at the sky without seeing a satellite, or several of them.

A new satellite is emphasizing that fact. It’s a prototype communications satellite with a roughly 700-square-foot antenna, and it’s brighter than most stars.

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BlueWalker 3 is a Cellphone Tower in Space and One of the Brightest Objects Ever Launched. Astronomers Aren’t Happy.

BlueWalker 3
Trails in the night sky left by BlueWalker 3 are juxtaposed against the Nicholas U. Mayall 4-meter Telescope at Kitt Peak National Observatory, a Program of NSF's NOIRLab. The lights from Tucson, Arizona, are seen in the background.

It seems our nighttime skies are hosting another new communications network. In recent years, we’ve seen Starlink trains of satellites moving against the backdrop of stars, and more OneWeb satellites will soon be heading to orbit. Now, it’s BlueWalker 3, a prototype test satellite for a new communications constellation aimed at cell phones. Think of it as the first of many “cell towers in space” providing communications access for people around the globe.

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BlueWalker-3 Satellite Launches This Weekend, May Be Bright

AST SpaceMobile
An artist's conception of BlueWalker-3 in space. Credit: AST SpaceMobile

A new satellite launching this weekend BlueWalker-3 could be conspicuously bright once it’s unfurled in orbit.

A routine SpaceX Starlink launch this coming weekend carries an unusual passenger, that you many be able to easily see gliding through the increasingly crowded night sky.

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