![These are calibrating lasers of the European Southern Observatory. How was this picture taken? : r/Astronomy These are calibrating lasers of the European Southern Observatory. How was this picture taken? : r/Astronomy](https://i.imgur.com/kDQH4Bl.jpg)
These are calibrating lasers of the European Southern Observatory. How was this picture taken? : r/Astronomy
![Megawatt-Class Lasers from Earth Could Attract Alien Astronomers, Says New Study | Astronomy | Sci-News.com Megawatt-Class Lasers from Earth Could Attract Alien Astronomers, Says New Study | Astronomy | Sci-News.com](https://cdn.sci.news/images/enlarge5/image_6591e-Megawatt-Class-Laser.jpg)
Megawatt-Class Lasers from Earth Could Attract Alien Astronomers, Says New Study | Astronomy | Sci-News.com
![Danigh-buy Laser Pointer Pen[Material Upgrade], Long Range Red Laser Pointer High Power, Laser Toy for Night Astronomy Outdoor Camping Hunting and Hiking, USB Charge - Amazon.com Danigh-buy Laser Pointer Pen[Material Upgrade], Long Range Red Laser Pointer High Power, Laser Toy for Night Astronomy Outdoor Camping Hunting and Hiking, USB Charge - Amazon.com](https://m.media-amazon.com/images/I/71B0v32RysL.jpg)
Danigh-buy Laser Pointer Pen[Material Upgrade], Long Range Red Laser Pointer High Power, Laser Toy for Night Astronomy Outdoor Camping Hunting and Hiking, USB Charge - Amazon.com
![Super Green Laser Pointer for Astronomy: Bright, Highly Visible Beam - 5mw High Power- 532nm 5mw | Reach For The Stars: Green laser pointer 532 5mw high power Super Green Laser Pointer for Astronomy: Bright, Highly Visible Beam - 5mw High Power- 532nm 5mw | Reach For The Stars: Green laser pointer 532 5mw high power](https://static.wixstatic.com/media/14946d_e357168d01fe4bc79c07b7606dffb9b8~mv2.jpg/v1/fill/w_980,h_715,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/14946d_e357168d01fe4bc79c07b7606dffb9b8~mv2.jpg)