The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader).

If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs.

Alternatively, you can download the PDF file directly to your computer, from where it can be opened using a PDF reader. To download the PDF, click the Download link above.

Fullscreen Fullscreen Off

   Subscribe/Renew Journal


The European Space Agency ESA and the Russian Roskosmos jointly want to place a robot in 2018 on the mars. Already they are preparing for the biggest challenge that is the soft landing on the Mars.
User
Subscription Login to verify subscription
Notifications
Font Size