Astronomie - MESSENGER arrive aux abords de Mercure - AstroSurf Envoyé 03-01-2008 19:42 j'ai relevé ces precisions sur le site, où il s'avère que c'est bien pour diminuer la vitesse de la sonde afin qu'elle soit capturée par Mercure...Mais ça ne répond pas tout à fait à la question : pourquoi peut-on envoyer directement une sonde en orbite de Mars et pas de Mercure ? Rôle joué par le Soleil, faible masse de Mercure ?? "5.
Online Planetarium Our Online Planetarium allows to compute the coordinates of planets, comets and asteroids and visualize them in the sky with respect to stars and constellations. Select the Solar System object from the list of available objects Add other objects using the "Add" button (useful feature when visualizing close conjunctions between objects) Choose the date and time for which you want to compute the position Choose your geographical location in order to see the precise position of the objects with respect to the horizon and accurate times for rise, transit and set Pan the sky chart by dragging it, zoom in or out using the mose wheel or the slider Take screenshots using the 'p' key (image opens in a popup window) You can share the current view of the sky, including all the added objects, camera direction and field of view. Use one of the following methods: Use the Sharing Buttons at the bottom of the page Copy and paste the following link
7 Space Simulators That Let You Explore the Universe Why should Mars rovers have all the fun? If you're tired of standing by while Curiosity rolls around up there, it's time to head out on the open exosphere and explore the universe for yourself — digitally, of course. SEE ALSO: 10 Must-Follow Tumblrs for Science Lovers A handful of excellent space simulators use real astronomical data to re-create the known universe in three dimensions. Fly through the galaxy at ludicrous speeds, map out humanity's best hope for extrasolar colonization, or mess with physics to create your own cosmic recipes.
Planet Flip Book - Inspired Elementary This next week at school is space week. I created this planet flip book that is a fun way to introduce the order of the planets from the sun. This activity is simple and effective, all while pulling in some fine motor skills practice. To begin this activity, I introduced the sun and each planet, showing pictures and sharing interesting facts about each one. This post contains affiliate links to products I personally recommend. Curiosity Cabinet Over the past 25 years I have accumulated a collection of various gizmos, devices, toys etc. which to me are excellent examples of scientific principles or things that you look at and you say "That's impossible!" except it's staring you in the face. In the hope that others may also find them interesting and with the help of two undergraduates, Jacy Lundberg and Omar Khan, we have created videos of many of the items in the collection. In many cases we have tried to include explanations of how they work or references to where one can find this information.
Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2016 April 15 Mercury and Crescent Moon Set Image Credit & Copyright: Miguel Claro (TWAN, Dark Sky Alqueva)
The Night Sky - Northern Hemisphere Spring | Summer | Autumn | Winter The following images are designed to demonstrate the night sky as seen when looking in the appropriate direction during a given season. By moving the mouse over the image, constellation drawings will appear. Sometimes it can be difficult to trace out a constellation without seeing an example because of several factors to include: light pollution, changes in position due to season changes, size differences from star charts to real size, and unfamiliarity. Hopefully this guide will help change this. Please be patient as the design of this page downloads the images so the mouse-over and larger images will appear faster when accessing each image.
No One Wants to Live in My 'Elysium'-Style Simulation Orbital Space Colony They will also be a pain in the ass to run. And I speak from experience on this because I briefly governed my own orbital colony. My time in command did not end well. DIY Solar Oven from a repurposed cardboard box Note: This DIY Solar Oven is a kids activity for experimental purposes only. The oven DOES work but eat your solar-cooked food at your own risk. It’s also important to note that this oven gets HOT so please supervise young children and take care when touching the glass bowl. Use a tea towel or oven mitt for safety. We’ve had a super-hot summer this year, apparently the hottest in recorded history. For our location this means more 40ºc+ days than I care to remember (and if you’re from the USA 40ºc = 104ºF).