NASA @NASA
🎉 Cheers to 21 years! Today in 1999, our @NASAEarth Observatory started delivering science stories & imagery to the public through the Internet. By using the vantage point of space, it has changed the way we view our home planet. 📸 Take a look: https://t.co/zlOZCuyjcx https://t.co/OyBkJkziow — PolitiTweet.org