水平距离

These discoveries raised the stakes. Here was a planet similar to our own. Mars might not have cities or civilizations. But it could be home to other smaller life forms like microbes. Chris McKay is N

发表于:2018-12-07 / 阅读(60) / 评论(0) 分类 火星生命

I think it is exciting. Because it would imply that if life arose independently on Mars. The implication is that life is pervasive throughout the universe. This is why Mars has so obsessed scientists.

发表于:2018-12-07 / 阅读(54) / 评论(0) 分类 火星生命

William Boynton is professor of planetary sciences at the University of Arizona. And he's dedicated his life to looking for water on Mars. The link between life and water is very strong. Even here in

发表于:2018-12-07 / 阅读(77) / 评论(0) 分类 火星生命

But there was something even better. Odyssey may not just have found ice. There may also be liquid water, and that means, there could be living creatures there too. Right now, there might be liquid wa

发表于:2019-01-02 / 阅读(75) / 评论(0) 分类 火星生命

The ground here is permafrost, a mixture of soil and ice frozen together. A group of Russian scientists have teamed up with NASA to drill down into it in search of microorganisms. It's work that's bee

发表于:2019-01-02 / 阅读(64) / 评论(0) 分类 火星生命

One of these wavelengths corresponds to hydrogen, another wavelength would be iron. Another wavelength would be oxygen. And so you go to the part of the spectrum you are interested in and you see you'

发表于:2019-01-02 / 阅读(55) / 评论(0) 分类 火星生命
学英语单词
a-r
activity log
anechoic enclosures
anti-coincidence counting
as far forth as
Aungywa
automatic logic testing and recording equipment
bare-assed
be ready to roll
block cipher
bouffants
Burrus light emitting diode
by telephone
charcoal pig iron
compound feed-screw
constant productivity
coolheaded
copy option
corylophid
coved skirting
cradle test roll
criticality factor
cyclophosphane
daonil tablet
Debreu
decocainize
delta-T
directional pilot relaying
dis-equilibriums
drug rash
electric motorcycle
even-numbered fatty acid
excursion
first press felt
Flathead Indian Reservation
gain pole
gene-sequencing
giovine
go soft
greenish
helical scan magnetic recording
Horrocks' maieutic
hyperaesthesia
in collar
in one's stocking feet
inside bearing
intershop trucking expense
inverted comma
Lac, Préfect. du
laparozoster
live tweet
lloyd
Létricourt
magnetoresistance material
make contribution
mastoplasia
metering pulse
mountboards
Munsell colour system
mycosterol
Myxiod
nanogap
nativo
nephrotic edema
net resource unit
non-isothermal jet
nondimensionally
notched tappet rod
nuclear-disintegration energy
optical strip
pan-Ionian
phytoglyphy
planetary stranding machine
Pomatiopsis
potentiostatically
preliminary grinding
prurient
pseudoazimuthal
pteronarcid
quadrilater
rami parotidici
recrystallizations
red blood cells
round flatter
satin-covereds
sewer shore
shoe sole
sleep on the dried pea
soil loss estimation
St-Eugène
tank gage
tonomechanics
torn it
transaction processor performance
unthermostatted
vardarac
vinessa
viscous pour point
whgoes
wild-mouth bottle
yellowish pinks
yilu