1, It is impossible to see beyond the cosmological particle horizon because________




2, Astronomers can only look back to when the universe was 300,000 years old and about 3000K because ___________




3, Recent evidence from distant supernovae seems to suggest a very strange phenomena, which is variously termed "the cosmological constant," "dark energy," or "quintessence." What is the observational result that inspires these speculations?



i would be very thankful to whoever can anwser these questions for me.

• Supernovae explosions - danieldgj - February 28, 2003 - 04:33 UTC
• Answer to Question 2 - triffid - March 11, 2003 - 03:00 UTC