The recent blood moon had sky gazers flocking outside to see the beautiful lunar eclipse, and likely instilled a curiosity about the night sky in many. If you find yourself wanting to know more about stars, planets and other objects in our universe, all you need is a smartphone and one or two of the following free apps.

1. Planets: This app has all the basics you could want in an easy-to-use interface. View the sky in 2-D or 3-D, and navigate simply by moving your iPhone. It will tell you when planets are visible, and even has rotating globes of our solar system’s planets and Earth’s moon. (iPhone) .

2. Exoplanet If you’d like to know more about planets beyond our solar system, Exoplanet is a great app. Updated each time a new discovery is confirmed, you can explore the Milky Way and everything in it. It includes visualizations and animations, an augmented reality map of the night sky that you navigate by moving your phone, and a 3-D model of our Milky Way among other great features. (iPhone)

3. Star & Planet Finder This app features an augmented reality display that guides you to the star you’ve selected to view. It shows data about each planet, and includes maps for tracking constellations and satellites. There are $0.99 upgrades for additional celestial bodies. (iPhone)

4. Star Chart One of the most popular free astronomy apps out there, Star Chart uses augmented reality to look at the sky, and shows you just what you’re looking at using a 3-D simulation of the night sky. You can use it during daylight hours to view what constellations are drown out by the sun’s light.

Planets in our solar system (including 3-D details) and more than 120,000 stars are included. And you can even shift backward in time to the sky 10,000 years ago. Learn more about the figures behind constellation names thanks to the beautiful renderings that are overlayed on the stars. (iPhone and Android)

5. Astronomy Picture of the Day Less interested in real-time star-gazing and more interested in simply great images of the universe? This app provides a new photo every day. You can also shake your phone to get a random image, or you can browse through the archives of NASA’s high resolution images of space and all its amazingness.(iPhone)

Source: mnn.com.