Physics & Astronomy
galaxies
100%
collisions
84%
detectors
69%
stars
59%
quarks
53%
luminosity
52%
telescopes
49%
decay
45%
planets
42%
quasars
41%
dust
37%
bosons
34%
energy
33%
protons
30%
cross sections
30%
leptons
30%
transverse momentum
29%
interactions
28%
Higgs bosons
28%
spectroscopy
27%
star formation
26%
supernovae
25%
hadrons
25%
electrons
25%
mars
24%
molecules
24%
Hubble Space Telescope
23%
simulation
23%
extrasolar planets
22%
predictions
22%
quantum chromodynamics
21%
gases
20%
dark energy
20%
photons
20%
asteroids
20%
estimates
20%
muons
19%
x rays
19%
wavelengths
19%
histories
19%
orbitals
19%
radii
19%
halos
18%
color
18%
continuums
18%
pulses
18%
confidence
18%
cameras
18%
orbits
17%
center of mass
17%
pair production
17%
adaptive optics
17%
observatories
17%
high resolution
17%
rings
16%
atmospheres
16%
debris
16%
excitation
16%
water
16%
mirrors
16%
performance
15%
ice
15%
tectonics
15%
atoms
15%
dark matter
15%
active galactic nuclei
15%
universe
15%
kinematics
15%
dwarf galaxies
15%
catalogs
15%
physics
14%
cavities
14%
profiles
14%
photometry
14%
time measurement
14%
rocks
14%
temperature
14%
characterization
14%
signatures
13%
lasers
13%
Titan
13%
anions
13%
metals
13%
shock
13%
propagation
13%
scattering
13%
nuclei
13%
probes
13%
polarization
12%
chemistry
12%
climate
12%
ionization
12%
geometry
12%
spectrometers
12%
James Webb Space Telescope
12%
mesons
12%
Jupiter (planet)
12%
magnetic fields
12%
crusts
11%
star formation rate
11%
Earth & Environmental Sciences
luminosity
61%
planet
43%
dust
42%
distribution
29%
energy
29%
rate
29%
Mars
27%
gas
25%
simulation
25%
detection
24%
near infrared
24%
climate
24%
young
24%
basin
24%
zircon
23%
accretion
22%
history
22%
effect
22%
spectroscopy
22%
analysis
21%
soil
21%
modeling
21%
parameter
21%
wavelength
20%
temperature
20%
radio
20%
asteroid
20%
atmosphere
19%
transition
19%
water
19%
observatory
17%
test
15%
prediction
15%
science
15%
method
15%
particle
15%
calibration
14%
comparison
14%
probe
14%
geochronology
14%
mountain
14%
plateau
14%
experiment
14%
terrane
14%
merger
13%
groundwater
13%
timescale
13%
crater
13%
rock
13%
material
13%
kinematics
13%
Titan
13%
outflow
12%
soil moisture
12%
sediment
12%
aquifer
12%
lake
12%
tectonics
12%
porous medium
12%
ice
12%
monsoon
12%
tracer
12%
desert
12%
carbon
11%
river
11%
Jupiter
11%
cosmology
11%
cold
11%
Cretaceous
11%
isotope
11%
aerosol
11%
vegetation
11%
drought
11%
climate change
10%
phylogenetics
10%
spectrometer
10%
radiation
10%
metal
10%
chemical
10%
gene
10%
hydrogen
10%
mineral
10%
catchment
10%
tree ring
10%
trend
10%
cooling
10%
exhumation
10%
ocean
10%
ion
9%
magnetic field
9%
rainfall
9%
mantle
9%
crust
9%
loss
9%
solar system
9%
collision
9%
provenance
9%
extinction
9%
energetics
9%
erg
9%
Medicine & Life Sciences
Sleep
26%
Memory
26%
Brain
24%
Connectin
23%
Manduca
23%
Genes
22%
Proteins
22%
Language
21%
Genome
20%
Neurons
20%
Melanocyte-Stimulating Hormones
19%
Learning
19%
Peptides
18%
Insecta
18%
Ligands
17%
Moths
16%
Ecosystem
14%
Population
14%
Emotions
14%
Child
13%
Climate
13%
Muscles
13%
Opioid Receptors
13%
Depression
12%
Oryza
12%
Psychology
12%
Phylogeny
12%
Water
12%
Temperature
12%
Hippocampus
11%
Semantics
11%
Cues
10%
Soil
10%
Drosophila
10%
Arabidopsis
10%
Health
10%
Mutation
10%
Aptitude
10%
Carbon
10%
DNA
9%
Animals
9%
Light
9%
Ecology
9%
Alzheimer Disease
9%
Amino Acids
9%
Membranes
9%
Sarcomeres
9%
Metals
9%
Magnetic Resonance Imaging
9%
Growth
9%
Cognition
8%
Electrons
8%
Students
8%
Life History Traits
8%
Melanocortin Receptors
8%
Psychology Recognition
8%
Mushroom Bodies
8%
Diptera
8%
Opioid Analgesics
8%
Sleep Initiation and Maintenance Disorders
8%
Direction compound
8%
Temporal Lobe
8%
Oceans and Seas
8%
Forests
8%
nebulin
7%
Anxiety
7%
Datasets
7%
Odorants
7%
Episodic Memory
7%
Individuality
7%
Mortality
7%
Climate Change
7%
Skeletal Muscle
7%
Young Adult
7%
D-Penicillamine (2,5)-Enkephalin
7%
Neoplasms
7%
Theoretical Models
7%
Prefrontal Cortex
6%
Therapeutics
6%
Linguistics
6%
Phenotype
6%
Axons
6%
Neuropil
6%
Enzymes
6%
Hispanic Americans
6%
Enkephalins
6%
Ions
6%
Nitric Oxide
6%
Oxygen
6%
Aphasia
6%
Spectrum Analysis
6%
Planets
6%
Bacteria
6%
Bacterial Artificial Chromosomes
6%
Short-Term Memory
6%
In Vitro Techniques
6%
Neisseria gonorrhoeae
6%
History
6%
Ants
6%
Personality
6%