Tristellateia seed and microflier (VIDEO) Northwestern University This video is under embargo. Please login to access this video. Caption A 3D microflier (right) compared to a tristellateia seed in free fall. Credit Northwestern University Usage Restrictions credit Northwestern University License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.