Explorers.com domain name was sold through the Sedo domain name marketplace for 30,000 EUR (about $40,050).According to whois records the domain name is currently in Escrow Transfer.

Sedo reported another notable domain name sales ,CloudEx.com ,sold for $30,000 .According to whois records,the domain name was registered in 2004.

Other notable domain name sales include :

urbanadventure.com 5,000 USD
tradeouts.com 23,000 USD
krev.com 2,050 USD
mobiledate.com 7,800 USD
devisassuranceauto.co.. 1,500 EUR
smutty.com 12,000 USD
reisebuchen.at 1,000 EUR
crossinnovation.com 1,000 EUR
herba.de 1,550 EUR
onlinedating.me 1,099 USD
webdots.de 8,830 EUR
starpool.com 3,000 USD
isocell.it 3,000 EUR
engineerjobs.co.za 3,000 USD
ink.me 2,500 GBP 
dentist.me 2,500 USD
filth.com 9,999 EUR
bbmall.com 2,100 USD
medicinali.com 10,000 EUR
faith.me 1,099 USD
pixxies.com 1,100 EUR
tubeled.com 1,200 EUR
blogigo.de 7,100 EUR
itattoo.com 5,000 USD

For more details check out Sedo.com