Resume de l’article : Nouvelle espèce de dinosaure, Covid long et carte du ciel : l’actu des sciences

Article summary and answer:

The article provides several science-related news briefs. The first brief concerns the discovery of a new dinosaur species, named Yi qi, in China. The second brief discusses the phenomenon of « Covid long, » where some patients experience long-term symptoms after recovering from Covid-19. The third brief announces the publication of a new star map, cataloging over a billion celestial objects.

The answer to the article is:

1. A new dinosaur species named Yi qi has been discovered in China.
2. Some patients experience long-term symptoms after recovering from Covid-19, known as « Covid long. »
3. A new star map has been published, cataloging over a billion celestial objects.