Aaron Sidder on Muck Rack

Aaron Sidder

Denver
As seen in: MSN, National Geographic, National Geographic Kids, Phys.org, Smithsonian Magazine, NewsBreak, sport.pl, Plotek.pl, Techonomy, Worth Magazine and
Ecology. Writing. GIS. @BatConIntl Ecologist. Former @AAASMassMedia. Bylines with @AGU_Eos, @SmithsonianMag, @NatGeo, @NGKids
Is this you? As a journalist, you can create a free Muck Rack account to customize your profile, list your contact preferences, and upload a portfolio of your best work. Claim your profile

Get in touch with Aaron

Contact Aaron, search articles and posts on X, monitor coverage, and track replies from one place.

Learn more about Muck Rack

Actions

Share this page

Is this you?

As a journalist, you can create a free Muck Rack account to customize your profile, list your contact preferences, and upload a portfolio of your best work.
Claim your profile

Articles

Cosmic bombardment may have opened Earth's crust for prebiotic chemistry

|
By Aaron Sidder
| MSN Verified
; ; ; Continue reading More for You
Open in Who Shared View Duplicates (700) Issue with article?

Cosmic bombardment may have opened Earth's crust for prebiotic chemistry

|
By Aaron Sidder, Gaby Clark Verified, Robert Egan Verified
| Phys.org Verified
An artistic rendering of early Earth during the Hadean eon shows a surface shaped by frequent impacts, localized melting, and regions with persistent liquid water. Neither entirely hellish nor tranquil, early Earth was a dynamic environment frequently transformed by impact bombardment. Credit: SwRI/Simone Marchi Asteroids and planetesimals regularly bombarded Earth between about 4.6 billion and 3.5 billion years ago, during the Hadean and Archean eons.
Open in Who Shared Issue with article?

Cosmic Bombardment Created Potential for Prebiotic Chemistry

|
By Aaron Sidder
| AGU's Eos
Asteroids and planetesimals regularly bombarded Earth between about 4.6 billion and 3.5 billion years ago, in the Hadean and Archean eons. Because few rocks today are more than 4 billion years old, our understanding of the planet’s environment during that time is limited. However, samples from the Moon and its cratered surface hint at the period’s rate of cosmic impacts. Early asteroid strikes were responsible for significant changes in Earth’s crust, which was primarily basalt-like at the time.
Open in Who Shared Issue with article?
See all 267 licensed articles (269 Total)
 •  Privacy  •  Terms  •  Security and Legal  •   •   •   • 

© 2026 Muck Rack

SOC 2® Certified