Astronomía
- We are the Martians!: Connecting Cosmology with Biology
- For many thousands of years, human beings have been asking themselves whether they are more frightened of being alone in the universe or of the thought that there is someone else out there. Over the past few decades, however, we have moved from imagination to action, exploring the cosmos using new techniques, often with surprising results.
- 12.21.2012: The Apocalypse Decryption
- Maybe the planet has thousands of years left, or only a few months. That is what are saying the tornadoes, cyclones, earthquakes, volcanoes, planetary magnetic shift, tsunamis and anything else that will eventually lead to a change in the polarity of the Earth's magnetic grid, and finally a geological transformation of the poles.
- Astronomical Instruments and Accessories
- This book was converted from its physical edition to the digital format by a community of volunteers. You may find it for free on the web. Purchase of the Kindle edition includes wireless delivery.