Tag Archives: Yarkovsky

The Difficulties with Predicting Armageddon

In February of 2013, the science community’s eyes were glued to the sky. They were watching for asteroid Duende, a 30m lump of rock that was due to skim past our planet in a record close approach for an object of its size. And while everyone stared skywards in one direction, another rock shot in […]

OSIRIS-REx – What’s in a Name?

The Art Project Today we officially unveiled the mural celebrating the University of Arizona-led OSIRIS-REx mission. To create this public art, we teamed up with the students of Professor Alfred Quiroz’s fall semester mural painting class at the UA School of Art. Between August and December 2014, the students worked together to produce this great […]

The YORP Effect and Bennu

As I have discussed in an earlier post, one of the OSIRIS-REx mission’s top objectives is to understand the Yarkovsky effect. The Yarkovsky effect describes a small force that affects the orbit of asteroids. In the 19th century, Ivan Yarkovsky realized that the infrared radiation escaping from a body warmed by the Sun carries off […]

Bennu's Journey is a 6-minute animated movie about NASA's OSIRIS-REx mission, asteroid Bennu, and the formation of our solar system.

The Science of “Bennu’s Journey”

This week the OSIRIS-REx project released Bennu’s Journey, a movie describing one possible history of our target asteroid – Bennu. The animation is among the most highly detailed productions created by Goddard’s Conceptual Image Laboratory. It is the result of an exciting collaboration between the OSIRIS-REx Science Team, Walt Feimer and Michael Lentz, from the […]

OSIRIS-REx at the 2014 Asteroids, Comets, and Meteors Conference

  I just recently returned from a trip to Helsinki, Finland to attend the 12th Asteroids, Comets, and Meteors Conference. The ACM conference focuses on the research of small Solar System bodies and their role in understanding the formation and evolution of the Solar System. Topics range from the evolution of extrasolar planetary systems to […]

Highlights from OSIRIS-REx Science Team Meeting #6

The OSIRIS-REx Science Team gathered at the University of Arizona in Tucson from April 22 -24, 2014 for their sixth meeting. The meeting was a dynamic event and covered many aspects of both the science and implementation of the mission. In this post I will discuss a few of the highlights. In Search of the […]

DEWG – Where’s my Asteroid?

The OSIRIS-REx mission is driven by five major science objectives. One of these objectives is to “Understand the interaction between asteroid thermal properties and orbital dynamics by measuring the Yarkovsky effect on a potentially hazardous asteroid [Bennu] and constrain the asteroid properties that contribute to this effect.” Read on to find out what this means […]