Saif
saifsobih.bsky.social
Saif
@saifsobih.bsky.social
Reposted by Saif
Carl Sagan explains how the ancient Greeks knew the Earth was round and calculated its circumference over 2,000 years ago.
July 29, 2025 at 3:14 PM
Reposted by Saif
The spectacular Butterfly Nebula, with its 3 light-year wingspan of gas ejected from a dying central star, is among the most structural complex planetary nebulae ever observed.

Credit: NASA/ESA/Hubble SM4 ERO Team
June 8, 2025 at 11:42 PM
Reposted by Saif
Carl Sagan explains how the ancient Greeks knew the Earth was round and calculated its circumference over 2,000 years ago.
April 20, 2025 at 5:00 PM
Reposted by Saif
Our new paper is finally out, showing that the same enhancer sequences - and likely the same transcription factors recruited to them - affect the activity of distal enhancers and their looping over to target gene promoters.

www.nature.com/articles/s41...
Genetic coupling of enhancer activity and connectivity in gene expression control - Nature Communications
Here, the authors study the effects of expression quantitative trait loci on enhancer activity and promoter contacts in primary monocytes isolated from male individuals, suggesting an inherent genetic...
www.nature.com
January 27, 2025 at 2:49 PM