Johnson, Crystalline silicates in comets: how did they form?, Icarus 180 (2006) 243Nuth, J.A. and Johnson, N.M. (2006) Crystalline silicates in comets: how did they form? Icarus 180, 243Nuth J. A. and Johnson N. M. 2006 . Crystalline silicates in comets: How did they form ...
One of the most famous star-forming regions visible to our eyes (and telescopes) is the Orion Nebula. A stellar nursery, it's a hotbed for newborn stars and provides a glimpse into the various stages of star birth. Whether you're looking at a Hubble image or gazing through a telescope,...
How did the asteroid belt form, and how did it affect the rest of the solar system? What do Mars and Jupiter have to do with it, and how do their orbits affect the main belt? What about the Kuiper belt and the Oort cloud -- are they any different from the main one? Are there ...
"This is the first model that we know about that you start out with a pretty simple structure for the solar nebula from which planets form, and end up with the giant-planet system that we see," Harold Levison, an astronomer at the Southwest Research Institute (SwRI) in Colorado and lead...
How long does it take for a protostar to form? How long did it take for the Voyager to reach the Kuiper belt? How long is a year on the planet Pluto? How long does it take for Earth to turn once on its axis? How long did it take the Voyager to reach the Oort cloud? How long...
This is a fairly old thread with some great information. Still, I must be missing something. Let me explain why I still have questions with the explanations I've found. A couple weeks ago I did 4 hours of exposure (49 subs at 5 minutes each) of M31 during a new moon at Joshua Tree...
How did the mass of the universe come into being? If the universe is ever-expanding, couldn't there be multiple universes expanding into each other? Define the term universe. If the universe is expanding, are the galaxies becoming larger? Explain If the universe is infinite, does it have ...
Below is a pic of that LMC sketch I did. I used white soft pastel, charcoal and white gel ink on A1 size black paper - yes, I sketch directly on to black paper at the eyepiece. I included a closeup of the sketch to show the amount of detail I put into the piece. ...
Cannabis plants have a gender. Each plant grows into a “male” or “female” plant. Although about half of plants are male or female, only female cannabis plants produce bud. Getting rid of male cannabis plants also prevents pollination (and seeds). Did You Know? You can identify gender ...
Did you know you can make your own coco mix at home? The pre-made mixes with coco coir that are formulated specifically for plants like cannabis. They’re convenient, but take up room in the house. A cheaper coco option is to buy dry coco bricks, which need to be re-hydrated with ...