Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Pastimes : NNBM - SI Branch -- Ignore unavailable to you. Want to Upgrade?

To: lurqer who wrote (25769)	4/23/2003 6:26:38 PM
From: thames_sider	Read Replies (1) \| Respond to of 104188

Oh, agreed, though 67MY is a little more than a cosmic blink. (well, 1/3 of a GY). So do stars in the spiral arms not tend to travel overall with similar velocity? I must admit, I'm hazy on what the arms are, but thought they were some kind of waveform, implying that the stars are under similar forces - so would there not be a fair likelihood that a close supernova might have left a close relic? Or would their relative motions truly be so different? Anyway, I'm happy to be rambled to on cosmology, I'm an interested amateur...