Simulations find ghostly whirls of dark matter trailing galaxy arms - Ars Technica

Read also:

• Should any books be banned from school libraries? Why is it important for students to read certain books in school?
• Atheists claim that Earth is 10 billion years old, yet there are no fossils that old. What do you have to say for yourselves for lying?
• What are the challenges associated with the birth narratives of Jesus?
• What has been your best sexual experience?
• Why don’t the little sugar breeches gun owners understand that life isn’t all sunshine and rainbows?
• Why do so many people seem to hate Nickelback? They're competent and entertaining, and while they certainly aren't the absolute best music, they're still a fun listen.
• Which is the correct Tamil New Year, Thai-1 or Chithirai-1?
• What does it mean when a guy says he doesn't want to ruin the friendship? Is he rejecting me or is there another explanation? Why would a guy choose not to risk the friendship if he has feelings for me?
• What was the worst spanking you got growing up?
• Why are leftist movements so popular among young people?
• James Webb Space Telescope sees 1st exoplanet raining sand alongside 'sandcastle' partner world - Space
• Why are black people harassed more by police officers?
• Why do narcissists avoid talking about the real issues?