Physics & Astronomy
flares
92%
helium
73%
spacecraft
56%
assembly
52%
filtergrams
49%
solar observatories
43%
helioseismology
40%
volcanic eruptions
38%
chromosphere
37%
sunspots
36%
bears
34%
solar energy
34%
radiative recombination
34%
atomic energy levels
33%
coronas
30%
photoionization
29%
field of view
28%
narrowband
28%
observatories
28%
enthalpy
27%
filaments
26%
fine structure
25%
spatial resolution
24%
telescopes
23%
atmospheres
21%
broadband
21%
high resolution
18%
x rays
13%
energy
9%
Earth & Environmental Sciences
helium
100%
transition
57%
spacecraft
34%
observatory
33%
emission standard
22%
GOES
22%
thermal evolution
22%
bear
21%
sunspot
21%
corona
20%
field of view
20%
recombination
20%
solar energy
20%
enthalpy
18%
volcanic eruption
15%
plasma
14%
code
14%
spatial resolution
14%
atmosphere
10%
calculation
10%
energy
9%
experiment
7%
analysis
4%
effect
4%