Physics & Astronomy
stars
98%
star formation
51%
massive stars
46%
star clusters
45%
catalogs
42%
x rays
38%
molecular clouds
25%
pre-main sequence stars
24%
nebulae
20%
kinematics
17%
European Southern Observatory
16%
Orion nebula
14%
protoplanetary disks
14%
hot stars
12%
gradients
12%
proper motion
11%
H II regions
11%
spectral energy distribution
10%
protostars
10%
dust
9%
halos
9%
light curve
8%
clumps
8%
point sources
8%
luminosity
7%
O stars
7%
James Webb Space Telescope
7%
gases
7%
chronometers
7%
infrared photometry
7%
telescopes
7%
astrophysics
7%
extinction
7%
galaxies
7%
cliffs
7%
molecular gases
7%
astronomy
7%
time measurement
6%
Hertzsprung-Russell diagram
6%
expansion
6%
census
5%
lists
5%
radii
5%
spectroscopy
5%
Infrared Astronomy Satellite
5%
physical properties
5%
B stars
5%
contamination
5%
stellar mass
5%
planets
5%
Earth & Environmental Sciences
young
100%
outburst
18%
kinematics
17%
young population
17%
luminosity
16%
accretion
15%
near infrared
14%
public
12%
elephant
11%
gas
10%
dust
9%
project
8%
extinction
8%
point source
7%
detection
7%
outflow
6%
planet
6%
distribution
6%
astronomy
6%
spectroscopy
6%
energy
5%
observatory
5%
diving
5%
atlas
5%
cliff
5%