1,217 reputation
118
bio website
location Santa Ana, CA
age 54
visits member for 10 months
seen 11 hours ago

15h
reviewed Approve Layout of the universe
2d
reviewed No Action Needed How does radio bandwidth restrict the choice and use of science payload on interplanetary probes?
2d
reviewed No Action Needed Do we know the exact spot where big bang took place?
2d
reviewed Close Alien Planet habitable or not?
2d
reviewed No Action Needed Given a date obtain latitude and longitude where is the sun zenith
Jan
22
reviewed No Action Needed Why does the sun rise north of east between the vernal and autumnal equinox?
Jan
22
reviewed No Action Needed What are the units of distance in this subtended angle calculation?
Jan
22
reviewed Close the initial astrometry calibration for a telescope
Jan
22
reviewed Close Photometric and spectroscopic redshifts
Jan
22
reviewed Leave Open How often does the supermassive black hole in the Milky Way become a quasar?
Jan
22
reviewed Approve Tide on the Moon
Jan
17
reviewed Close Why do scientists think life requires water?
Jan
17
comment Why do scientists think life requires water?
I think this may be off-topic because the question is about Biology.
Jan
17
reviewed Close Why does Mars' experience an 'ice age' at high axis obliquity, when Earth experiences an ice age at low axis obliquity
Jan
17
reviewed Leave Open Could the planets in the Solar System have been captured?
Jan
17
reviewed No Action Needed How to calculate distance from object to point on celestial sphere
Jan
17
reviewed Approve Do we have knowledge of the geology of the moon?
Jan
14
reviewed Close Origin of the original bright light and matter
Jan
14
reviewed Close How do astronomers choose their research topic?
Jan
9
comment Collision of two Earths
But the earth didn't end up in the sun, or an long elliptical orbit. Its orbit is still almost circular.