Physics & Astronomy
dust
100%
stars
43%
Space Infrared Telescope Facility
41%
ejecta
39%
novae
37%
infrared astronomy
33%
volcanic eruptions
32%
comets
30%
silicates
25%
observatories
24%
nebulae
22%
galaxies
21%
luminosity
20%
supernovae
20%
asymptotic giant branch stars
19%
coma
18%
SOFIA (airborne observatory)
16%
photometry
14%
neon
13%
light curve
13%
spectral energy distribution
12%
time measurement
12%
census
12%
infrared spectra
11%
color
11%
wavelengths
11%
infrared spectroscopy
11%
Hale-Bopp comet
10%
infrared photometry
10%
metallicity
10%
continuums
10%
polarimetry
10%
telescopes
9%
rings
9%
shock
9%
ejection
9%
Hubble Space Telescope
9%
dwarf galaxies
8%
x rays
8%
lobes
8%
carbon
8%
blasts
8%
cameras
7%
gases
7%
star formation
7%
explosions
7%
thermal emission
7%
nuclei
7%
planetary nebulae
7%
estimates
7%
Earth & Environmental Sciences
dust
90%
ejecta
40%
outburst
38%
luminosity
32%
comet
31%
volcanic eruption
22%
silicate
22%
near infrared
21%
observatory
20%
wavelength
18%
neon
17%
astronomy
16%
Hale-Bopp
14%
loss
14%
gas
13%
spectroscopy
12%
radio
12%
carbon
12%
energy
10%
temperature
10%
detection
9%
infrared spectroscopy
9%
hydrogen
8%
census
8%
merger
8%
polarization
8%
extinction
7%
outflow
7%
rate
7%
temporal evolution
6%
ionization
6%
material
6%
young
6%
spectrometer
6%
recombination
6%
radiation
5%
metal
5%
condensation
5%
oxygen
5%
PAH
5%